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jQuery is a JavaScript Library that focuses on simplifying DOM manipulation, AJAX calls, and Event handling.

jQuery use $(selector).action() to let selector element do action event. For example:

  alert("Hello World!");

This jQuery code has same effect as following native JavaScript code:

window.onload = function() {
  alert( "Hello World!" );

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 Contributors to this page: Sparks, iigmir, 6stringbeliever
 Last updated by: Sparks,