jQuery

Back to Top ### Post Table of Contents * Getting Started With jQuery * Installation * Other Notes Before You Start * Selectors * Selecting Elements by ID * Selecting Elements by Class Name * Selecting Elements by Attribute * Selecting Elements by Compound CSS Selector * Pseudo-Selectors * Traversing * Events * The `this` Keyword * Some Useful jQuery Methods * Ajax and Http

Warmup - Array Filter

The Javascript Array Filter function is used to remove unwanted elements from an array. The filter function accepts a callback function. The callback function is invoked once with each element in the array. If the callback function returns a truthy value the element stays. If the callback function returns a