3 ways to clone in JS

Objects in JavaScript are reference values, you can't simply just copy using the '='

Save It For Later! Let's begin...

const food = {a : 'apple', b : 'burger'}

1. Spread

{...food}

2. Object.assign

Object.assign({}, food)

3. JSON

JSON.parse(JSON.stringify(food))

Result

{a : 'apple', b : 'burger'}

Do you know the difference between these 3 ways? Comment down below!

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Comments

[Andrew Jones]

One difference is that JSON.stringify will break if your object has circular references - you can use a custom replacer to prevent this stackoverflow.com/questions/116166...

[Rupak Dey]

Sure! Will check those out. Thank you