How to copy an array in JavaScript
In this post we will give you information about How to copy an array in JavaScript. Hear we will give you detail about How to copy an array in JavaScriptAnd how to use it also give you demo for it if it is necessary.
we are going to learn about two different ways to copy or clone an array in JavaScript.
Slice method
The slice() method returns the copy of an array without modifying the original array in JavaScript.
Example:
const users = ['jim','raj','king'];const users2 = users.slice() // creates the copyconsole.log(users2) // ['jim','raj','king'];
Es6 spread operator (…)
In es6, we have a spread operator(…) which helps us to create a duplicate copy of an array.
Example:
const users = ['jim','raj','king'];const users2 = [...users]// creates the copyconsole.log(users2) // ['jim','raj','king'];
In the above code, we have added …users inside users2 array so that all elements present inside the users array are copied to the users2 array.
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