javascript how to copy array code example
Example 1: copy array javascript
const sheeps = ['Apple', 'Banana', 'Juice'];
// Old way
const cloneSheeps = sheeps.slice();
// ES6 way
const cloneSheepsES6 = [...sheeps];
Example 2: javascript copy array
// this is for array with complex object
var countries = [
{name: 'USA', population: '300M'},
{name: 'China', population: '1.6B'}
];
var newCountries = JSON.parse(JSON.stringify(countries));
Example 3: javascript copy array
var oldColors=["red","green","blue"];
var newColors = oldColors.slice(); //make a clone/copy of oldColors