js for loop
var i; //defines i
for (i = 0; i < 5; i++) { //starts loop
console.log("The Number Is: " + i); //What ever you want
}; //ends loop
//Or:
console.log("The Number Is: " + 0);
console.log("The Number Is: " + 1);
console.log("The Number Is: " + 2);
console.log("The Number Is: " + 3);
console.log("The Number Is: " + 4);
//They do the same thing!
//Hope I helped!for loop on a array
var array = [1, 2, 3, 4, 5];
// made an array
for (var i = 0; array[i]; i++) // browse your array with this simple condition on index
console.log('element '+i+' = '+array[i]);
//output:
element 0 = 1
element 1 = 2
element 2 = 3
element 3 = 4
element 4 = 5iterate array javascript
array = [ 1, 2, 3, 4, 5, 6 ];
for (index = 0; index < array.length; index++) {
console.log(array[index]);
}loop an array in javascript
let array = ["loop", "this", "array"]; // input array variable
for (let i = 0; i < array.length; i++) { // iteration over input
console.log(array[i]); // logs the elements from the current input
}loop elements in javascript
var list = [{a:1,b:2}, {a:3,b:5}, {a:8,b:2}, {a:4,b:1}, {a:0,b:8}];
for (var i = list.length - 1, item; item = list[i]; i--) {
console.log("Looping: index ", i, "item", item);
}
######### ES6 Update ################
for (let item of list) {
console.log("Looping: index ", "Sorry!!!", "item" + item);
}javascript loop through array
// looping through an array in javascript using our own myEach function
// Write an `Array.prototype.myEach(callback)` method that invokes a callback
// for every element in an array and returns undefined.
Array.prototype.myEach = function(callback) {
for (let i = 0 ; i < this.length ; i ++) {
callback(this[i]);
}
}
let array = ['Item 1', 'Item 2', 'Item 3', 'Item 4'];
array.myEach(function (element) {
console.log(element); // this will print each element in the array
// Code to do something to each element in the array
});Copyright © 2021 Codeinu
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