4. How jQuery Works
This chapter covers the general functioning of jQuery, particularly the relationship to JavaScript and the Document Object Model (DOM). You also learn how jQuery expands the core functionalities of JavaScript and DOM. Effective programming with jQuery requires your familiarity with JavaScript syntax and concepts. This, in turn, means that you want to understand such elementary things as the following:
Variables and data types
Literals
Expressions
Objects with their methods and properties
Functions, function calls, and function ...
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