how to create array in javascript
JavaScript
//create an array like so:
var colors = ["red","blue","green"];
//you can loop through an array like this:
for (var i = 0; i < colors.length; i++) {
console.log(colors[i]);
}var myArray = [ "Jack", "Sawyer", "John", "Desmond" ];// Initializing while declaring
// Creates an array having elements 10, 20, 30, 40, 50
var house = new Array(10, 20, 30, 40, 50);
//Creates an array of 5 undefined elements
var house1 = new Array(5);
//Creates an array with element 1BHK
var home = new Array("!BHK");
Array.from("Hello"); // ["H", "e", "l", "l", "o"]The JavaScript filter() method has several components to its syntax.
newArray = initialArr.filter(callback);
newArray: you name the array that will consist of the filtered elements.
initialArr: the name of the original array.
callback: the method applied to the initialArr.
The callback can have three arguments as well:
element: the current element of the array.
index: the index number of the currently handled value.
array: the original array.
Therefore, the full syntax of the JavaScript array filter function would look like this:
newArray = initialArr.filter(callback(element, index, array));/*
Array class is a global object that is used
in the construction of arrays
See - https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array
*/
let array_1 = new Array(2);
arr.push("James");
arr.push("Fred");
let array_2 = ["James", "Fred"];
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