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Returning null from a constructor in a React Class
Return a value other than the class in ES6Calling the base constructor in C#How to check empty/undefined/null string in JavaScript?How to change an element's class with JavaScript?How do I remove a property from a JavaScript object?How do I call one constructor from another in Java?event.preventDefault() vs. return falseHow do I remove a particular element from an array in JavaScript?How do I return the response from an asynchronous call?Understanding unique keys for array children in React.jsCan you force a React component to rerender without calling setState?
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;
I have seen this in a codebase:
Class MyComponent extends React.Component
constructor(props)
if(!props.value) return null
this.state =
value: props.value
....
This is a React Component.
I am wondering what could happen if you return early in the constructor?
Would the component be instantiated? Can this cause issues?
javascript reactjs constructor
asked Mar 25 at 12:39
Kevin AmiranoffKevin Amiranoff
3,2985 gold badges18 silver badges46 bronze badges
add a comment |
I have seen this in a codebase:
Class MyComponent extends React.Component
constructor(props)
if(!props.value) return null
this.state =
value: props.value
....
This is a React Component.
I am wondering what could happen if you return early in the constructor?
Would the component be instantiated? Can this cause issues?
javascript reactjs constructor
asked Mar 25 at 12:39
Kevin AmiranoffKevin Amiranoff
3,2985 gold badges18 silver badges46 bronze badges
1
stackoverflow.com/questions/27980996/…
– Dragoş Paul Marinescu
Mar 25 at 12:46
add a comment |
I have seen this in a codebase:
Class MyComponent extends React.Component
constructor(props)
if(!props.value) return null
this.state =
value: props.value
....
This is a React Component.
I am wondering what could happen if you return early in the constructor?
Would the component be instantiated? Can this cause issues?
javascript reactjs constructor
asked Mar 25 at 12:39
Kevin AmiranoffKevin Amiranoff
3,2985 gold badges18 silver badges46 bronze badges
I have seen this in a codebase:
Class MyComponent extends React.Component
constructor(props)
if(!props.value) return null
this.state =
value: props.value
....
This is a React Component.
I am wondering what could happen if you return early in the constructor?
Would the component be instantiated? Can this cause issues?
javascript reactjs constructor
javascript reactjs constructor
asked Mar 25 at 12:39
Kevin AmiranoffKevin Amiranoff
3,2985 gold badges18 silver badges46 bronze badges
asked Mar 25 at 12:39
Kevin AmiranoffKevin Amiranoff
3,2985 gold badges18 silver badges46 bronze badges
asked Mar 25 at 12:39
Kevin AmiranoffKevin Amiranoff
3,2985 gold badges18 silver badges46 bronze badges
asked Mar 25 at 12:39
Kevin AmiranoffKevin Amiranoff
3,2985 gold badges18 silver badges46 bronze badges
asked Mar 25 at 12:39
Kevin AmiranoffKevin Amiranoff
3,2985 gold badges18 silver badges46 bronze badges
3,2985 gold badges18 silver badges46 bronze badges
1
stackoverflow.com/questions/27980996/…
– Dragoş Paul Marinescu
Mar 25 at 12:46
add a comment |
1
stackoverflow.com/questions/27980996/…
– Dragoş Paul Marinescu
Mar 25 at 12:46
1
1
stackoverflow.com/questions/27980996/…
– Dragoş Paul Marinescu
Mar 25 at 12:46
stackoverflow.com/questions/27980996/…
– Dragoş Paul Marinescu
Mar 25 at 12:46
add a comment |
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stackoverflow.com/questions/27980996/…
– Dragoş Paul Marinescu
Mar 25 at 12:46