Separate arrays instead of one using for loop and push method in JavaScript

A variable can hold only singal value.

Syntax:

var <array-name> = [element0, element1, element2,... elementN];

Example:

var i = 1.
var stringArray = ["one", "two", "three"];
var numericArray = [1, 2, 3, 4];
var decimalArray = [1.1, 1.2, 1.3];
var booleanArray = [true, false, false, true];
var mixedArray = [1, "two", "three", 4];

You can assign only singal literal value to i. You can not assign more than one literal values to a variable i. It will be overcome this problem, JavaScript provides an array([]).

An array is a special type of variable(var), which can store multiple values using special syntax. Each and Every value is associated with numeric index starting with index of [0].

let allNumbers = [1, 2, 3, 4, 5, 6, 7, 8, 9]; 
let bigNumbers = []; 
let smallNumbers = [];
allNumbers.forEach(function (a) {
if(a >= 5) {
bigNumbers.push(a);
} else {
smallNumbers.push(a);
}
});
console.log("Big: " + JSON.stringify(bigNumbers));
console.log("Small: " + JSON.stringify(smallNumbers));