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The specified value “undefined” is not a valid number
Validate decimal numbers in JavaScript - IsNumeric()Detecting an undefined object propertyHow to validate an email address in JavaScript?Which “href” value should I use for JavaScript links, “#” or “javascript:void(0)”?How to check empty/undefined/null string in JavaScript?How can I get query string values in JavaScript?How to determine if variable is 'undefined' or 'null'?How to check for “undefined” in JavaScript?Can I hide the HTML5 number input’s spin box?Is there a standard function to check for null, undefined, or blank variables in JavaScript?
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1
I´m learning for an exam which is about company inventories.
I thought i could do myself a favor and learn something new about coding while learning for this exams.
Normally i only do frontend with very little javascript at my company.
What i´m trying to do is setting up a table with 2 input rows.
Row 1: Input from me
Row 2: Sums of my input
i put in a button that should give the value i enter at Row 1 to another field in Row 2.
When my input type is number im getting this:
The specified value "undefined" is not a valid number. The value must match to the following regular expression: -?(d+|d+.d+|.d+)([eE][-+]?d+)?
When my input type is text im getting:
undefined
I´m pretty sure something about my function is wrong but i can´t figure it out and when i search for my issue i only find more complex cases which i also
don´t understand.
Thank´s in advance for any help :)
<script>
function test()
var x = document.getElementById("1").value;
document.getElementById("ro").value = x;
</script>
</head>
<body>
<table>
<tr><td><b><button onclick="test()">test</button></b></td></tr>
<tr><td> </td></tr>
<tr>
<td>
<div id="flex-table">
<table id="names">
<!--Names--><!--Names-->
<caption>A: Vermögen</caption>
<tr><th>I. Anlagevermögen</th></tr>
<tr><td class="first">Grundstücke</td></tr>
<tr><td class="second">Gernotstraße</td> </tr>
</table>
<table id="input">
<!--Input--><!--Input-->
<caption> </caption>
<tr><th><p>€</p></th></tr>
<tr><td> </td></tr>
<tr><td><form id="1"><input type="number" value="0"></form></td></tr>
</table>
<table id="values">
<!--Values--><!--Values-->
<caption> </caption>
<tr><th><p>€</p></th></tr>
<tr><td> </td></tr>
<tr><td><input id="ro" type="number"value="0" readonly></td></tr>
</table>
</div>
</td>
</tr>
</table>
javascript html5 input datatable getelementbyid
asked Mar 23 at 15:34
JurijcornJurijcorn
277
add a comment |
1
I´m learning for an exam which is about company inventories.
I thought i could do myself a favor and learn something new about coding while learning for this exams.
Normally i only do frontend with very little javascript at my company.
What i´m trying to do is setting up a table with 2 input rows.
Row 1: Input from me
Row 2: Sums of my input
i put in a button that should give the value i enter at Row 1 to another field in Row 2.
When my input type is number im getting this:
The specified value "undefined" is not a valid number. The value must match to the following regular expression: -?(d+|d+.d+|.d+)([eE][-+]?d+)?
When my input type is text im getting:
undefined
I´m pretty sure something about my function is wrong but i can´t figure it out and when i search for my issue i only find more complex cases which i also
don´t understand.
Thank´s in advance for any help :)
<script>
function test()
var x = document.getElementById("1").value;
document.getElementById("ro").value = x;
</script>
</head>
<body>
<table>
<tr><td><b><button onclick="test()">test</button></b></td></tr>
<tr><td> </td></tr>
<tr>
<td>
<div id="flex-table">
<table id="names">
<!--Names--><!--Names-->
<caption>A: Vermögen</caption>
<tr><th>I. Anlagevermögen</th></tr>
<tr><td class="first">Grundstücke</td></tr>
<tr><td class="second">Gernotstraße</td> </tr>
</table>
<table id="input">
<!--Input--><!--Input-->
<caption> </caption>
<tr><th><p>€</p></th></tr>
<tr><td> </td></tr>
<tr><td><form id="1"><input type="number" value="0"></form></td></tr>
</table>
<table id="values">
<!--Values--><!--Values-->
<caption> </caption>
<tr><th><p>€</p></th></tr>
<tr><td> </td></tr>
<tr><td><input id="ro" type="number"value="0" readonly></td></tr>
</table>
</div>
</td>
</tr>
</table>
javascript html5 input datatable getelementbyid
asked Mar 23 at 15:34
JurijcornJurijcorn
277
2
Your id must be assigned to a input element, not the form itself.
– Marc
Mar 23 at 15:38
oh i see that was stupid, it works now. Thank you very much!
– Jurijcorn
Mar 23 at 15:44
add a comment |
1
1
1
I´m learning for an exam which is about company inventories.
I thought i could do myself a favor and learn something new about coding while learning for this exams.
Normally i only do frontend with very little javascript at my company.
What i´m trying to do is setting up a table with 2 input rows.
Row 1: Input from me
Row 2: Sums of my input
i put in a button that should give the value i enter at Row 1 to another field in Row 2.
When my input type is number im getting this:
The specified value "undefined" is not a valid number. The value must match to the following regular expression: -?(d+|d+.d+|.d+)([eE][-+]?d+)?
When my input type is text im getting:
undefined
I´m pretty sure something about my function is wrong but i can´t figure it out and when i search for my issue i only find more complex cases which i also
don´t understand.
Thank´s in advance for any help :)
<script>
function test()
var x = document.getElementById("1").value;
document.getElementById("ro").value = x;
</script>
</head>
<body>
<table>
<tr><td><b><button onclick="test()">test</button></b></td></tr>
<tr><td> </td></tr>
<tr>
<td>
<div id="flex-table">
<table id="names">
<!--Names--><!--Names-->
<caption>A: Vermögen</caption>
<tr><th>I. Anlagevermögen</th></tr>
<tr><td class="first">Grundstücke</td></tr>
<tr><td class="second">Gernotstraße</td> </tr>
</table>
<table id="input">
<!--Input--><!--Input-->
<caption> </caption>
<tr><th><p>€</p></th></tr>
<tr><td> </td></tr>
<tr><td><form id="1"><input type="number" value="0"></form></td></tr>
</table>
<table id="values">
<!--Values--><!--Values-->
<caption> </caption>
<tr><th><p>€</p></th></tr>
<tr><td> </td></tr>
<tr><td><input id="ro" type="number"value="0" readonly></td></tr>
</table>
</div>
</td>
</tr>
</table>
javascript html5 input datatable getelementbyid
asked Mar 23 at 15:34
JurijcornJurijcorn
277
I´m learning for an exam which is about company inventories.
I thought i could do myself a favor and learn something new about coding while learning for this exams.
Normally i only do frontend with very little javascript at my company.
What i´m trying to do is setting up a table with 2 input rows.
Row 1: Input from me
Row 2: Sums of my input
i put in a button that should give the value i enter at Row 1 to another field in Row 2.
When my input type is number im getting this:
The specified value "undefined" is not a valid number. The value must match to the following regular expression: -?(d+|d+.d+|.d+)([eE][-+]?d+)?
When my input type is text im getting:
undefined
I´m pretty sure something about my function is wrong but i can´t figure it out and when i search for my issue i only find more complex cases which i also
don´t understand.
Thank´s in advance for any help :)
<script>
function test()
var x = document.getElementById("1").value;
document.getElementById("ro").value = x;
</script>
</head>
<body>
<table>
<tr><td><b><button onclick="test()">test</button></b></td></tr>
<tr><td> </td></tr>
<tr>
<td>
<div id="flex-table">
<table id="names">
<!--Names--><!--Names-->
<caption>A: Vermögen</caption>
<tr><th>I. Anlagevermögen</th></tr>
<tr><td class="first">Grundstücke</td></tr>
<tr><td class="second">Gernotstraße</td> </tr>
</table>
<table id="input">
<!--Input--><!--Input-->
<caption> </caption>
<tr><th><p>€</p></th></tr>
<tr><td> </td></tr>
<tr><td><form id="1"><input type="number" value="0"></form></td></tr>
</table>
<table id="values">
<!--Values--><!--Values-->
<caption> </caption>
<tr><th><p>€</p></th></tr>
<tr><td> </td></tr>
<tr><td><input id="ro" type="number"value="0" readonly></td></tr>
</table>
</div>
</td>
</tr>
</table>
javascript html5 input datatable getelementbyid
javascript html5 input datatable getelementbyid
asked Mar 23 at 15:34
JurijcornJurijcorn
277
asked Mar 23 at 15:34
JurijcornJurijcorn
277
asked Mar 23 at 15:34
JurijcornJurijcorn
277
asked Mar 23 at 15:34
JurijcornJurijcorn
277
asked Mar 23 at 15:34
JurijcornJurijcorn
277
277
2
Your id must be assigned to a input element, not the form itself.
– Marc
Mar 23 at 15:38
oh i see that was stupid, it works now. Thank you very much!
– Jurijcorn
Mar 23 at 15:44
add a comment |
2
Your id must be assigned to a input element, not the form itself.
– Marc
Mar 23 at 15:38
oh i see that was stupid, it works now. Thank you very much!
– Jurijcorn
Mar 23 at 15:44
2
2
Your id must be assigned to a input element, not the form itself.
– Marc
Mar 23 at 15:38
Your id must be assigned to a input element, not the form itself.
– Marc
Mar 23 at 15:38
oh i see that was stupid, it works now. Thank you very much!
– Jurijcorn
Mar 23 at 15:44
oh i see that was stupid, it works now. Thank you very much!
– Jurijcorn
Mar 23 at 15:44
add a comment |
3 Answers
3
active
oldest
votes
1
Mistake
- First thing
idis not only numeric. so you must mix with some string - And
document.getElementById("string1")is placed withformnot a input.so add id to input instead ofform
<script>
function test()
var x = document.getElementById("string1").value;
document.getElementById("ro").value = x;
</script>
<body>
<table>
<tr>
<td><b><button onclick="test()">test</button></b></td>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td>
<div id="flex-table">
<table id="names">
<!--Names-->
<!--Names-->
<caption>A: Vermögen</caption>
<tr>
<th>I. Anlagevermögen</th>
</tr>
<tr>
<td class="first">Grundstücke</td>
</tr>
<tr>
<td class="second">Gernotstraße</td>
</tr>
</table>
<table id="input">
<!--Input-->
<!--Input-->
<caption> </caption>
<tr>
<th>
<p>€</p>
</th>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td>
<form><input id="string1" type="number" value="0"></form>
</td>
</tr>
</table>
<table id="values">
<!--Values-->
<!--Values-->
<caption> </caption>
<tr>
<th>
<p>€</p>
</th>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td><input id="ro" type="number" value="0" readonly></td>
</tr>
</table>
</div>
</td>
</tr>
</table>answered Mar 23 at 15:40
prasanthprasanth
15k21538
thank you very much, that was a stupid mistake but can u explain me what u mean with the <id> part, i think it doesn't matter what u choose as id or does it?
– Jurijcorn
Mar 23 at 15:45
1
yes does not a matter.You could set anything as a id.But its not good practise.In future more no of coding and variable.its will be more confusing and complex.Use some related name of the activity element,eg:input get username set id="username". variable and name defining is one of the biggest task in coding
– prasanth
Mar 23 at 15:54
1
okay i see, better implement the good habits before getting used to bad ones. Thank you prasanth :)
– Jurijcorn
Mar 23 at 15:57
1
@Jurijcorn you are always welcome.Happy coding....
– prasanth
Mar 23 at 15:58
add a comment |
1
You're reading the value of form, which has no value. You probably mean to read the value from the input element.
function test()
var x = document.getElementById("1").value;
document.getElementById("ro").value = x;
<table>
<tr>
<td><b><button onclick="test()">test</button></b></td>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td>
<div id="flex-table">
<table id="names">
<caption>A: Vermögen</caption>
<tr>
<th>I. Anlagevermögen</th>
</tr>
<tr>
<td class="first">Grundstücke</td>
</tr>
<tr>
<td class="second">Gernotstraße</td>
</tr>
</table>
<table id="input">
<caption> </caption>
<tr>
<th>
<p>€</p>
</th>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td>
<input id="1" type="number" value="0">
</td>
</tr>
</table>
<table id="values">
<caption> </caption>
<tr>
<th>
<p>€</p>
</th>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td><input id="ro" type="number" value="0" readonly></td>
</tr>
</table>
</div>
</td>
</tr>
</table>answered Mar 23 at 15:40
jlowgrenjlowgren
2,99232139
add a comment |
1
Your second table should be corrected in the following way. The id value "1" was referring the form element and not the input element.
<table id="input">
<!--Input--><!--Input-->
<caption> </caption>
<tr><th><p>€</p></th></tr>
<tr><td> </td></tr>
<tr><td><form><input type="number" value="0" id="1"></form></td></tr>
</table>
answered Mar 23 at 15:42
HarshanaHarshana
357212
add a comment |
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3 Answers
3
active
oldest
votes
3 Answers
3
active
oldest
votes
active
oldest
votes
active
oldest
votes
1
Mistake
- First thing
idis not only numeric. so you must mix with some string - And
document.getElementById("string1")is placed withformnot a input.so add id to input instead ofform
<script>
function test()
var x = document.getElementById("string1").value;
document.getElementById("ro").value = x;
</script>
<body>
<table>
<tr>
<td><b><button onclick="test()">test</button></b></td>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td>
<div id="flex-table">
<table id="names">
<!--Names-->
<!--Names-->
<caption>A: Vermögen</caption>
<tr>
<th>I. Anlagevermögen</th>
</tr>
<tr>
<td class="first">Grundstücke</td>
</tr>
<tr>
<td class="second">Gernotstraße</td>
</tr>
</table>
<table id="input">
<!--Input-->
<!--Input-->
<caption> </caption>
<tr>
<th>
<p>€</p>
</th>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td>
<form><input id="string1" type="number" value="0"></form>
</td>
</tr>
</table>
<table id="values">
<!--Values-->
<!--Values-->
<caption> </caption>
<tr>
<th>
<p>€</p>
</th>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td><input id="ro" type="number" value="0" readonly></td>
</tr>
</table>
</div>
</td>
</tr>
</table>answered Mar 23 at 15:40
prasanthprasanth
15k21538
thank you very much, that was a stupid mistake but can u explain me what u mean with the <id> part, i think it doesn't matter what u choose as id or does it?
– Jurijcorn
Mar 23 at 15:45
1
yes does not a matter.You could set anything as a id.But its not good practise.In future more no of coding and variable.its will be more confusing and complex.Use some related name of the activity element,eg:input get username set id="username". variable and name defining is one of the biggest task in coding
– prasanth
Mar 23 at 15:54
1
okay i see, better implement the good habits before getting used to bad ones. Thank you prasanth :)
– Jurijcorn
Mar 23 at 15:57
1
@Jurijcorn you are always welcome.Happy coding....
– prasanth
Mar 23 at 15:58
add a comment |
1
Mistake
- First thing
idis not only numeric. so you must mix with some string - And
document.getElementById("string1")is placed withformnot a input.so add id to input instead ofform
<script>
function test()
var x = document.getElementById("string1").value;
document.getElementById("ro").value = x;
</script>
<body>
<table>
<tr>
<td><b><button onclick="test()">test</button></b></td>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td>
<div id="flex-table">
<table id="names">
<!--Names-->
<!--Names-->
<caption>A: Vermögen</caption>
<tr>
<th>I. Anlagevermögen</th>
</tr>
<tr>
<td class="first">Grundstücke</td>
</tr>
<tr>
<td class="second">Gernotstraße</td>
</tr>
</table>
<table id="input">
<!--Input-->
<!--Input-->
<caption> </caption>
<tr>
<th>
<p>€</p>
</th>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td>
<form><input id="string1" type="number" value="0"></form>
</td>
</tr>
</table>
<table id="values">
<!--Values-->
<!--Values-->
<caption> </caption>
<tr>
<th>
<p>€</p>
</th>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td><input id="ro" type="number" value="0" readonly></td>
</tr>
</table>
</div>
</td>
</tr>
</table>answered Mar 23 at 15:40
prasanthprasanth
15k21538
thank you very much, that was a stupid mistake but can u explain me what u mean with the <id> part, i think it doesn't matter what u choose as id or does it?
– Jurijcorn
Mar 23 at 15:45
1
yes does not a matter.You could set anything as a id.But its not good practise.In future more no of coding and variable.its will be more confusing and complex.Use some related name of the activity element,eg:input get username set id="username". variable and name defining is one of the biggest task in coding
– prasanth
Mar 23 at 15:54
1
okay i see, better implement the good habits before getting used to bad ones. Thank you prasanth :)
– Jurijcorn
Mar 23 at 15:57
1
@Jurijcorn you are always welcome.Happy coding....
– prasanth
Mar 23 at 15:58
add a comment |
1
1
1
Mistake
- First thing
idis not only numeric. so you must mix with some string - And
document.getElementById("string1")is placed withformnot a input.so add id to input instead ofform
<script>
function test()
var x = document.getElementById("string1").value;
document.getElementById("ro").value = x;
</script>
<body>
<table>
<tr>
<td><b><button onclick="test()">test</button></b></td>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td>
<div id="flex-table">
<table id="names">
<!--Names-->
<!--Names-->
<caption>A: Vermögen</caption>
<tr>
<th>I. Anlagevermögen</th>
</tr>
<tr>
<td class="first">Grundstücke</td>
</tr>
<tr>
<td class="second">Gernotstraße</td>
</tr>
</table>
<table id="input">
<!--Input-->
<!--Input-->
<caption> </caption>
<tr>
<th>
<p>€</p>
</th>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td>
<form><input id="string1" type="number" value="0"></form>
</td>
</tr>
</table>
<table id="values">
<!--Values-->
<!--Values-->
<caption> </caption>
<tr>
<th>
<p>€</p>
</th>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td><input id="ro" type="number" value="0" readonly></td>
</tr>
</table>
</div>
</td>
</tr>
</table>answered Mar 23 at 15:40
prasanthprasanth
15k21538
Mistake
- First thing
idis not only numeric. so you must mix with some string - And
document.getElementById("string1")is placed withformnot a input.so add id to input instead ofform
<script>
function test()
var x = document.getElementById("string1").value;
document.getElementById("ro").value = x;
</script>
<body>
<table>
<tr>
<td><b><button onclick="test()">test</button></b></td>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td>
<div id="flex-table">
<table id="names">
<!--Names-->
<!--Names-->
<caption>A: Vermögen</caption>
<tr>
<th>I. Anlagevermögen</th>
</tr>
<tr>
<td class="first">Grundstücke</td>
</tr>
<tr>
<td class="second">Gernotstraße</td>
</tr>
</table>
<table id="input">
<!--Input-->
<!--Input-->
<caption> </caption>
<tr>
<th>
<p>€</p>
</th>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td>
<form><input id="string1" type="number" value="0"></form>
</td>
</tr>
</table>
<table id="values">
<!--Values-->
<!--Values-->
<caption> </caption>
<tr>
<th>
<p>€</p>
</th>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td><input id="ro" type="number" value="0" readonly></td>
</tr>
</table>
</div>
</td>
</tr>
</table><script>
function test()
var x = document.getElementById("string1").value;
document.getElementById("ro").value = x;
</script>
<body>
<table>
<tr>
<td><b><button onclick="test()">test</button></b></td>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td>
<div id="flex-table">
<table id="names">
<!--Names-->
<!--Names-->
<caption>A: Vermögen</caption>
<tr>
<th>I. Anlagevermögen</th>
</tr>
<tr>
<td class="first">Grundstücke</td>
</tr>
<tr>
<td class="second">Gernotstraße</td>
</tr>
</table>
<table id="input">
<!--Input-->
<!--Input-->
<caption> </caption>
<tr>
<th>
<p>€</p>
</th>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td>
<form><input id="string1" type="number" value="0"></form>
</td>
</tr>
</table>
<table id="values">
<!--Values-->
<!--Values-->
<caption> </caption>
<tr>
<th>
<p>€</p>
</th>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td><input id="ro" type="number" value="0" readonly></td>
</tr>
</table>
</div>
</td>
</tr>
</table><script>
function test()
var x = document.getElementById("string1").value;
document.getElementById("ro").value = x;
</script>
<body>
<table>
<tr>
<td><b><button onclick="test()">test</button></b></td>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td>
<div id="flex-table">
<table id="names">
<!--Names-->
<!--Names-->
<caption>A: Vermögen</caption>
<tr>
<th>I. Anlagevermögen</th>
</tr>
<tr>
<td class="first">Grundstücke</td>
</tr>
<tr>
<td class="second">Gernotstraße</td>
</tr>
</table>
<table id="input">
<!--Input-->
<!--Input-->
<caption> </caption>
<tr>
<th>
<p>€</p>
</th>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td>
<form><input id="string1" type="number" value="0"></form>
</td>
</tr>
</table>
<table id="values">
<!--Values-->
<!--Values-->
<caption> </caption>
<tr>
<th>
<p>€</p>
</th>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td><input id="ro" type="number" value="0" readonly></td>
</tr>
</table>
</div>
</td>
</tr>
</table>answered Mar 23 at 15:40
prasanthprasanth
15k21538
answered Mar 23 at 15:40
prasanthprasanth
15k21538
answered Mar 23 at 15:40
prasanthprasanth
15k21538
answered Mar 23 at 15:40
prasanthprasanth
15k21538
15k21538
thank you very much, that was a stupid mistake but can u explain me what u mean with the <id> part, i think it doesn't matter what u choose as id or does it?
– Jurijcorn
Mar 23 at 15:45
1
yes does not a matter.You could set anything as a id.But its not good practise.In future more no of coding and variable.its will be more confusing and complex.Use some related name of the activity element,eg:input get username set id="username". variable and name defining is one of the biggest task in coding
– prasanth
Mar 23 at 15:54
1
okay i see, better implement the good habits before getting used to bad ones. Thank you prasanth :)
– Jurijcorn
Mar 23 at 15:57
1
@Jurijcorn you are always welcome.Happy coding....
– prasanth
Mar 23 at 15:58
add a comment |
thank you very much, that was a stupid mistake but can u explain me what u mean with the <id> part, i think it doesn't matter what u choose as id or does it?
– Jurijcorn
Mar 23 at 15:45
1
yes does not a matter.You could set anything as a id.But its not good practise.In future more no of coding and variable.its will be more confusing and complex.Use some related name of the activity element,eg:input get username set id="username". variable and name defining is one of the biggest task in coding
– prasanth
Mar 23 at 15:54
1
okay i see, better implement the good habits before getting used to bad ones. Thank you prasanth :)
– Jurijcorn
Mar 23 at 15:57
1
@Jurijcorn you are always welcome.Happy coding....
– prasanth
Mar 23 at 15:58
thank you very much, that was a stupid mistake but can u explain me what u mean with the <id> part, i think it doesn't matter what u choose as id or does it?
– Jurijcorn
Mar 23 at 15:45
thank you very much, that was a stupid mistake but can u explain me what u mean with the <id> part, i think it doesn't matter what u choose as id or does it?
– Jurijcorn
Mar 23 at 15:45
1
1
yes does not a matter.You could set anything as a id.But its not good practise.In future more no of coding and variable.its will be more confusing and complex.Use some related name of the activity element,
eg:input get username set id="username" . variable and name defining is one of the biggest task in coding– prasanth
Mar 23 at 15:54
yes does not a matter.You could set anything as a id.But its not good practise.In future more no of coding and variable.its will be more confusing and complex.Use some related name of the activity element,
eg:input get username set id="username" . variable and name defining is one of the biggest task in coding– prasanth
Mar 23 at 15:54
1
1
okay i see, better implement the good habits before getting used to bad ones. Thank you prasanth :)
– Jurijcorn
Mar 23 at 15:57
okay i see, better implement the good habits before getting used to bad ones. Thank you prasanth :)
– Jurijcorn
Mar 23 at 15:57
1
1
@Jurijcorn you are always welcome.Happy coding....
– prasanth
Mar 23 at 15:58
@Jurijcorn you are always welcome.Happy coding....
– prasanth
Mar 23 at 15:58
add a comment |
1
You're reading the value of form, which has no value. You probably mean to read the value from the input element.
function test()
var x = document.getElementById("1").value;
document.getElementById("ro").value = x;
<table>
<tr>
<td><b><button onclick="test()">test</button></b></td>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td>
<div id="flex-table">
<table id="names">
<caption>A: Vermögen</caption>
<tr>
<th>I. Anlagevermögen</th>
</tr>
<tr>
<td class="first">Grundstücke</td>
</tr>
<tr>
<td class="second">Gernotstraße</td>
</tr>
</table>
<table id="input">
<caption> </caption>
<tr>
<th>
<p>€</p>
</th>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td>
<input id="1" type="number" value="0">
</td>
</tr>
</table>
<table id="values">
<caption> </caption>
<tr>
<th>
<p>€</p>
</th>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td><input id="ro" type="number" value="0" readonly></td>
</tr>
</table>
</div>
</td>
</tr>
</table>answered Mar 23 at 15:40
jlowgrenjlowgren
2,99232139
add a comment |
1
You're reading the value of form, which has no value. You probably mean to read the value from the input element.
function test()
var x = document.getElementById("1").value;
document.getElementById("ro").value = x;
<table>
<tr>
<td><b><button onclick="test()">test</button></b></td>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td>
<div id="flex-table">
<table id="names">
<caption>A: Vermögen</caption>
<tr>
<th>I. Anlagevermögen</th>
</tr>
<tr>
<td class="first">Grundstücke</td>
</tr>
<tr>
<td class="second">Gernotstraße</td>
</tr>
</table>
<table id="input">
<caption> </caption>
<tr>
<th>
<p>€</p>
</th>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td>
<input id="1" type="number" value="0">
</td>
</tr>
</table>
<table id="values">
<caption> </caption>
<tr>
<th>
<p>€</p>
</th>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td><input id="ro" type="number" value="0" readonly></td>
</tr>
</table>
</div>
</td>
</tr>
</table>answered Mar 23 at 15:40
jlowgrenjlowgren
2,99232139
add a comment |
1
1
1
You're reading the value of form, which has no value. You probably mean to read the value from the input element.
function test()
var x = document.getElementById("1").value;
document.getElementById("ro").value = x;
<table>
<tr>
<td><b><button onclick="test()">test</button></b></td>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td>
<div id="flex-table">
<table id="names">
<caption>A: Vermögen</caption>
<tr>
<th>I. Anlagevermögen</th>
</tr>
<tr>
<td class="first">Grundstücke</td>
</tr>
<tr>
<td class="second">Gernotstraße</td>
</tr>
</table>
<table id="input">
<caption> </caption>
<tr>
<th>
<p>€</p>
</th>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td>
<input id="1" type="number" value="0">
</td>
</tr>
</table>
<table id="values">
<caption> </caption>
<tr>
<th>
<p>€</p>
</th>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td><input id="ro" type="number" value="0" readonly></td>
</tr>
</table>
</div>
</td>
</tr>
</table>answered Mar 23 at 15:40
jlowgrenjlowgren
2,99232139
You're reading the value of form, which has no value. You probably mean to read the value from the input element.
function test()
var x = document.getElementById("1").value;
document.getElementById("ro").value = x;
<table>
<tr>
<td><b><button onclick="test()">test</button></b></td>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td>
<div id="flex-table">
<table id="names">
<caption>A: Vermögen</caption>
<tr>
<th>I. Anlagevermögen</th>
</tr>
<tr>
<td class="first">Grundstücke</td>
</tr>
<tr>
<td class="second">Gernotstraße</td>
</tr>
</table>
<table id="input">
<caption> </caption>
<tr>
<th>
<p>€</p>
</th>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td>
<input id="1" type="number" value="0">
</td>
</tr>
</table>
<table id="values">
<caption> </caption>
<tr>
<th>
<p>€</p>
</th>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td><input id="ro" type="number" value="0" readonly></td>
</tr>
</table>
</div>
</td>
</tr>
</table>function test()
var x = document.getElementById("1").value;
document.getElementById("ro").value = x;
<table>
<tr>
<td><b><button onclick="test()">test</button></b></td>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td>
<div id="flex-table">
<table id="names">
<caption>A: Vermögen</caption>
<tr>
<th>I. Anlagevermögen</th>
</tr>
<tr>
<td class="first">Grundstücke</td>
</tr>
<tr>
<td class="second">Gernotstraße</td>
</tr>
</table>
<table id="input">
<caption> </caption>
<tr>
<th>
<p>€</p>
</th>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td>
<input id="1" type="number" value="0">
</td>
</tr>
</table>
<table id="values">
<caption> </caption>
<tr>
<th>
<p>€</p>
</th>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td><input id="ro" type="number" value="0" readonly></td>
</tr>
</table>
</div>
</td>
</tr>
</table>function test()
var x = document.getElementById("1").value;
document.getElementById("ro").value = x;
<table>
<tr>
<td><b><button onclick="test()">test</button></b></td>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td>
<div id="flex-table">
<table id="names">
<caption>A: Vermögen</caption>
<tr>
<th>I. Anlagevermögen</th>
</tr>
<tr>
<td class="first">Grundstücke</td>
</tr>
<tr>
<td class="second">Gernotstraße</td>
</tr>
</table>
<table id="input">
<caption> </caption>
<tr>
<th>
<p>€</p>
</th>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td>
<input id="1" type="number" value="0">
</td>
</tr>
</table>
<table id="values">
<caption> </caption>
<tr>
<th>
<p>€</p>
</th>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td><input id="ro" type="number" value="0" readonly></td>
</tr>
</table>
</div>
</td>
</tr>
</table>answered Mar 23 at 15:40
jlowgrenjlowgren
2,99232139
answered Mar 23 at 15:40
jlowgrenjlowgren
2,99232139
answered Mar 23 at 15:40
jlowgrenjlowgren
2,99232139
answered Mar 23 at 15:40
jlowgrenjlowgren
2,99232139
2,99232139
add a comment |
add a comment |
1
Your second table should be corrected in the following way. The id value "1" was referring the form element and not the input element.
<table id="input">
<!--Input--><!--Input-->
<caption> </caption>
<tr><th><p>€</p></th></tr>
<tr><td> </td></tr>
<tr><td><form><input type="number" value="0" id="1"></form></td></tr>
</table>
answered Mar 23 at 15:42
HarshanaHarshana
357212
add a comment |
1
Your second table should be corrected in the following way. The id value "1" was referring the form element and not the input element.
<table id="input">
<!--Input--><!--Input-->
<caption> </caption>
<tr><th><p>€</p></th></tr>
<tr><td> </td></tr>
<tr><td><form><input type="number" value="0" id="1"></form></td></tr>
</table>
answered Mar 23 at 15:42
HarshanaHarshana
357212
add a comment |
1
1
1
Your second table should be corrected in the following way. The id value "1" was referring the form element and not the input element.
<table id="input">
<!--Input--><!--Input-->
<caption> </caption>
<tr><th><p>€</p></th></tr>
<tr><td> </td></tr>
<tr><td><form><input type="number" value="0" id="1"></form></td></tr>
</table>
answered Mar 23 at 15:42
HarshanaHarshana
357212
Your second table should be corrected in the following way. The id value "1" was referring the form element and not the input element.
<table id="input">
<!--Input--><!--Input-->
<caption> </caption>
<tr><th><p>€</p></th></tr>
<tr><td> </td></tr>
<tr><td><form><input type="number" value="0" id="1"></form></td></tr>
</table>
answered Mar 23 at 15:42
HarshanaHarshana
357212
answered Mar 23 at 15:42
HarshanaHarshana
357212
answered Mar 23 at 15:42
HarshanaHarshana
357212
answered Mar 23 at 15:42
HarshanaHarshana
357212
357212
add a comment |
add a comment |
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2
Your id must be assigned to a input element, not the form itself.
– Marc
Mar 23 at 15:38
oh i see that was stupid, it works now. Thank you very much!
– Jurijcorn
Mar 23 at 15:44