JavaScript Objects
JavaScript objects are written with curly braces. Object properties are written as name: value pairs, separated by commas. Example var person...
JavaScript Arrays
JavaScript arrays are written with square brackets. Array items are separated by commas. The following code declares (creates) an array...
JavaScript Booleans
Booleans can only have two values: true or false. Example var x = 5; var y = 5; var z = 6; (x == y) // Returns...
JavaScript Numbers
JavaScript has only one type of numbers. Numbers can be written with, or without decimals: Example var x1 = 34.00; // Written with...
JavaScript Strings
A string (or a text string) is a series of characters like “John Doe”. Strings are written with quotes. You...