showing results for - "how to copy one array to another in javascript"
Abril
07 Feb 2019
1const sheeps = ['Apple', 'Banana', 'Juice'];
2
3// Old way
4const cloneSheeps = sheeps.slice();
5
6// ES6 way
7const cloneSheepsES6 = [...sheeps];
Kenji
25 Oct 2020
1/* Copying arrays or parts of arrays in JavaScript */
2
3var fruit = ["apple", "banana", "fig"]; // Define initial array.
4console.log(fruit); // ["apple", "banana", "fig"]
5
6// Copy an entire array using .slice()
7var fruit2 = fruit.slice(); 
8console.log(fruit2); // ["apple", "banana", "fig"]
9
10// Copy only two array indicies rather than all three
11// From index 0 (inclusive) to index 2 (noninclusive)
12var fruit3 = fruit.slice(0,2); 
13console.log(fruit3); // ["apple", "banana"]
Leni
10 May 2019
1var numbers = [1,2,3,4,5];
2var newNumbers = Object.assign([], numbers);
Erica
14 Sep 2019
1var destinationArray = Array.from(sourceArray);
Isabella
06 Feb 2020
1// this is for array with complex object
2var countries = [
3  {name: 'USA', population: '300M'}, 
4  {name: 'China', population: '1.6B'}
5];
6
7var newCountries = JSON.parse(JSON.stringify(countries));
8
Luna
17 Jan 2016
1var oldColors=["red","green","blue"];
2var newColors = oldColors.slice(); //make a clone/copy of oldColors
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