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Shallow-clone an ES6 Map or Set
How to shallow copy a Set in JavaScript?What is the most efficient way to deep clone an object in JavaScript?Setting “checked” for a checkbox with jQuery?How can I know which radio button is selected via jQuery?How do I loop through or enumerate a JavaScript object?How do I correctly clone a JavaScript object?Set a default parameter value for a JavaScript functionHow can I display a JavaScript object?Convert form data to JavaScript object with jQueryParse JSON in JavaScript?Copy array by value
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How do you shallow-clone an ES6 Map or Set object?
I want to get a new Map or Set that has the same keys and values.
javascript ecmascript-6
asked Jun 3 '15 at 16:47
Jo LissJo Liss
16k10 gold badges92 silver badges139 bronze badges
add a comment |
How do you shallow-clone an ES6 Map or Set object?
I want to get a new Map or Set that has the same keys and values.
javascript ecmascript-6
asked Jun 3 '15 at 16:47
Jo LissJo Liss
16k10 gold badges92 silver badges139 bronze badges
add a comment |
How do you shallow-clone an ES6 Map or Set object?
I want to get a new Map or Set that has the same keys and values.
javascript ecmascript-6
asked Jun 3 '15 at 16:47
Jo LissJo Liss
16k10 gold badges92 silver badges139 bronze badges
How do you shallow-clone an ES6 Map or Set object?
I want to get a new Map or Set that has the same keys and values.
javascript ecmascript-6
javascript ecmascript-6
asked Jun 3 '15 at 16:47
Jo LissJo Liss
16k10 gold badges92 silver badges139 bronze badges
asked Jun 3 '15 at 16:47
Jo LissJo Liss
16k10 gold badges92 silver badges139 bronze badges
asked Jun 3 '15 at 16:47
Jo LissJo Liss
16k10 gold badges92 silver badges139 bronze badges
asked Jun 3 '15 at 16:47
Jo LissJo Liss
16k10 gold badges92 silver badges139 bronze badges
asked Jun 3 '15 at 16:47
Jo LissJo Liss
16k10 gold badges92 silver badges139 bronze badges
16k10 gold badges92 silver badges139 bronze badges
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
Use the constructor to clone Maps and Sets:
var clonedMap = new Map(originalMap)
var clonedSet = new Set(originalSet)
answered Jun 3 '15 at 16:47
Jo LissJo Liss
16k10 gold badges92 silver badges139 bronze badges
1
How to do a deep clone?
– BILL
Apr 29 '16 at 11:34
3
Check out this fiddle to see how to deep clone a map: jsfiddle.net/pahund/5qtt2Len/1
– Patrick Hund
Feb 24 '17 at 13:23
3
Mapshould be treated as an abstract data type, not as a Javascript object. Hence deep cloning aMapdoesn't make sense.
– user6445533
Feb 25 '17 at 20:55
3
Unfortunately the copy constructor does not work in IE 11 (empty map is created).
– Jan Molnar
Jan 17 '18 at 12:10
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Use the constructor to clone Maps and Sets:
var clonedMap = new Map(originalMap)
var clonedSet = new Set(originalSet)
answered Jun 3 '15 at 16:47
Jo LissJo Liss
16k10 gold badges92 silver badges139 bronze badges
1
How to do a deep clone?
– BILL
Apr 29 '16 at 11:34
3
Check out this fiddle to see how to deep clone a map: jsfiddle.net/pahund/5qtt2Len/1
– Patrick Hund
Feb 24 '17 at 13:23
3
Mapshould be treated as an abstract data type, not as a Javascript object. Hence deep cloning aMapdoesn't make sense.
– user6445533
Feb 25 '17 at 20:55
3
Unfortunately the copy constructor does not work in IE 11 (empty map is created).
– Jan Molnar
Jan 17 '18 at 12:10
add a comment |
Use the constructor to clone Maps and Sets:
var clonedMap = new Map(originalMap)
var clonedSet = new Set(originalSet)
answered Jun 3 '15 at 16:47
Jo LissJo Liss
16k10 gold badges92 silver badges139 bronze badges
1
How to do a deep clone?
– BILL
Apr 29 '16 at 11:34
3
Check out this fiddle to see how to deep clone a map: jsfiddle.net/pahund/5qtt2Len/1
– Patrick Hund
Feb 24 '17 at 13:23
3
Mapshould be treated as an abstract data type, not as a Javascript object. Hence deep cloning aMapdoesn't make sense.
– user6445533
Feb 25 '17 at 20:55
3
Unfortunately the copy constructor does not work in IE 11 (empty map is created).
– Jan Molnar
Jan 17 '18 at 12:10
add a comment |
Use the constructor to clone Maps and Sets:
var clonedMap = new Map(originalMap)
var clonedSet = new Set(originalSet)
answered Jun 3 '15 at 16:47
Jo LissJo Liss
16k10 gold badges92 silver badges139 bronze badges
Use the constructor to clone Maps and Sets:
var clonedMap = new Map(originalMap)
var clonedSet = new Set(originalSet)
answered Jun 3 '15 at 16:47
Jo LissJo Liss
16k10 gold badges92 silver badges139 bronze badges
answered Jun 3 '15 at 16:47
Jo LissJo Liss
16k10 gold badges92 silver badges139 bronze badges
answered Jun 3 '15 at 16:47
Jo LissJo Liss
16k10 gold badges92 silver badges139 bronze badges
answered Jun 3 '15 at 16:47
Jo LissJo Liss
16k10 gold badges92 silver badges139 bronze badges
16k10 gold badges92 silver badges139 bronze badges
1
How to do a deep clone?
– BILL
Apr 29 '16 at 11:34
3
Check out this fiddle to see how to deep clone a map: jsfiddle.net/pahund/5qtt2Len/1
– Patrick Hund
Feb 24 '17 at 13:23
3
Mapshould be treated as an abstract data type, not as a Javascript object. Hence deep cloning aMapdoesn't make sense.
– user6445533
Feb 25 '17 at 20:55
3
Unfortunately the copy constructor does not work in IE 11 (empty map is created).
– Jan Molnar
Jan 17 '18 at 12:10
add a comment |
1
How to do a deep clone?
– BILL
Apr 29 '16 at 11:34
3
Check out this fiddle to see how to deep clone a map: jsfiddle.net/pahund/5qtt2Len/1
– Patrick Hund
Feb 24 '17 at 13:23
3
Mapshould be treated as an abstract data type, not as a Javascript object. Hence deep cloning aMapdoesn't make sense.
– user6445533
Feb 25 '17 at 20:55
3
Unfortunately the copy constructor does not work in IE 11 (empty map is created).
– Jan Molnar
Jan 17 '18 at 12:10
1
1
How to do a deep clone?
– BILL
Apr 29 '16 at 11:34
How to do a deep clone?
– BILL
Apr 29 '16 at 11:34
3
3
Check out this fiddle to see how to deep clone a map: jsfiddle.net/pahund/5qtt2Len/1
– Patrick Hund
Feb 24 '17 at 13:23
Check out this fiddle to see how to deep clone a map: jsfiddle.net/pahund/5qtt2Len/1
– Patrick Hund
Feb 24 '17 at 13:23
3
3
Map should be treated as an abstract data type, not as a Javascript object. Hence deep cloning a Map doesn't make sense.– user6445533
Feb 25 '17 at 20:55
Map should be treated as an abstract data type, not as a Javascript object. Hence deep cloning a Map doesn't make sense.– user6445533
Feb 25 '17 at 20:55
3
3
Unfortunately the copy constructor does not work in IE 11 (empty map is created).
– Jan Molnar
Jan 17 '18 at 12:10
Unfortunately the copy constructor does not work in IE 11 (empty map is created).
– Jan Molnar
Jan 17 '18 at 12:10
add a comment |
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