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Create new array without impacting values from old array in JavaScript?
Let’s say the following is our current array −
var listOfNames=["John","Mike","Sam","Carol"];
Use JSON.parse(JSON.stringify()) to create new array and set values from the old array above.
Example
function createNewArray(listOfNames) {
return JSON.parse(JSON.stringify(listOfNames));
}
var listOfNames=["John","Mike","Sam","Carol"];
var namesArray = listOfNames.slice();
console.log("The new Array=");
console.log(namesArray);To run the above program, you need to use the following command −
node fileName.js.
Here, my file name is demo111.js.
Output
This will produce the following output −
PS C:\Users\Amit\JavaScript-code> node demo111.js The new Array= [ 'John', 'Mike', 'Sam', 'Carol' ]
Updated on: 09-Sep-2020
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