how to find length of array js
var array = [1, 2, 3, 4, 5]; // array of size 5
var size = array.length; // add.length to get size
console.log('size : '+size);
//output: size : 5how to find length of array js
var array = [1, 2, 3, 4, 5]; // array of size 5
var size = array.length; // add.length to get size
console.log('size : '+size);
//output: size : 5array length javascript
var numbers = [1, 2, 3, 4, 5];
var length = numbers.length;
for (var i = 0; i < length; i++) {
numbers[i] *= 2;
}
// numbers is now [2, 4, 6, 8, 10]javascript size array
let array = [1, 2, 3];
console.log(array.length);js length of array
arr = ["a", "b", "c"];
len = arr.length; // 3set array length js
const array = new Array(myLength)js new array of length
ES6 gives us Array.from so now you can also use
Array.from(Array(5)).forEach(alert)
If you want to initialize with a certain value, these are good to knows...
Array.from('abcde'),
Array.from('x'.repeat(5))
or
Array.from({length: 5}, (v, i) => i) // gives [0, 1, 2, 3, 4]Copyright © 2021 Codeinu
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