CODEWITHSUNDEEP
javascriptarraysobject
Ryan
Ryan

Reputation: 6217

JavaScript Remove Object From Array & Return It

Using JavaScript how can I remove an object from an array and return that object? For example, change this:

[{first:"John", last:"Smith"}]

...to this:

{first:"John", last:"Smith"}

http://plnkr.co/edit/VqBCsXGuMM54MwHIKW3c?p=preview

Upvotes: 0

Views: 78

Answers (2)

Felipe Skinner
Felipe Skinner

Reputation: 16636

You could use the pop() method. It will always remove the last element from array and handle it to you;

Example:

var myArray = [{first:"John", last:"Smith"}]
var myObject = myArray.pop()

Now your myObject value will be {first:"John", last:"Smith"} and your myArray will be empty

If you had more than one items:

var myArray = [{first:"John", last:"Smith"}, {first:"Test", last:"Now"}]
var myObject = myArray.pop()

What happens here is that your myArray will have just the first value and the myObject will have the last one {first:"Test", last:"Now"}

You could also take a look at splice()

Upvotes: 0

ssube
ssube

Reputation: 48287

Use splice. It will remove some items from the array and return them.

var data = [{first:"John", last:"Smith"}];
var extract = data.splice(0, 1);
console.log(extract, data); // will print: {first..., last...}, []

Note that splice does return an array itself, so you'll have to take the appropriate elements from that.

If you only have a single element, you can splice, pop, or simply take the element by index and then truncate the array.

Upvotes: 4

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