JavaScript Flashcards

A handy way to learn common JavaScript and jQuery definitions! Click on a card and see what happens!

JavaScript

an object-oriented computer programming language commonly used to create interactive effects within web browsers

Modulo

an operation that finds the remainder after division of one number by another

Operators

a symbol that is used to perform an operation

NaN

property indicates that a value is not a legal number

Variable naming Conventions

style guidelines for programming

+=

operator that adds to a variable's defined value

Function

a block of code designed to perform a particular task

Method

a message you send, and the result is the response

Argument to a method

is located within the parentheses of the method

String

variable containing letters, numbers, and characters

Chaining methods

a technique that can be used to simplify code in scenarios that involve calling multiple functions on the same object consecutively

Escape

function that computes a new string in which certain characters have been replaced by a hexadecimal escape sequence

Alert

function that creates dialouge box with entered string

Commenting Code

comments inserted into the source code without affecting the program

Booleans

a true or false value

Undefined

the undefined property indicates that a variable has not been assigned a value

Parameter

variable inputs to a function

Return

statement that ends function execution and specifies a value to be returned to the function caller