Tag: javascript-objects

50 votes
30 answers
1.9K views
How can I check if an object is an array?

I'm trying to write a function that either accepts a list of strings, or a single string. If it's a

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Trudy
0 1 0 9
asked 07 September, 2021
53 votes
30 answers
1.5K views
How do I correctly clone a JavaScript object?

I have an object x. I'd like to copy it as object y, such that changes to y do not modify x. I realized t

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Hallie
0 1 0 9
asked 07 September, 2021
65 votes
30 answers
1.1K views
How do I test for an empty JavaScript object?

After an AJAX request, sometimes my application may return an empty object, like: var a = {}; How can I che

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Nereida
0 1 0 9
asked 07 September, 2021
48 votes
30 answers
2K views
How do I check if an array includes a value in JavaScript?

What is the most concise and efficient way to find out if a JavaScript array contains a value? This is the onl

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Omar
0 1 0 9
asked 07 September, 2021