Javascript (JQuery, JSON, AJAX, etc.)

Question 1

Function

Answer 1

Functions are one of the fundamental building blocks in JavaScript. A function is a JavaScript procedure—a set of statements that performs a task or calculates a value. To use a function, you must define it somewhere in the scope from which you wish to call it.

Question 2

Function Definition

Answer 2

A function definition (also called a function declaration) consists of the function keyword, followed by:

• The name of the function.
• A list of arguments to the function, enclosed in
  parentheses and separated by commas.
• The JavaScript statements that define the function,
  enclosed in curly brackets, { }.

Question 3

Get an HTML element by ID

Answer 3

document.getElementById(‘txt_name’);

Question 4

Remove HTML element

Answer 4

element.remove();

Question 5

Reload current page from cache

Answer 5

location.reload();

Question 6

Reload current page from server

Answer 6

location.reload(true);