Strings represent text, whereas numbers represent mathematical calculations. Developers use arrays to hold item collections, whereas booleans indicate true or false values. Objects keep more detailed information, such as a person’s name, age, and address.
The terms null and undefined denote the lack of a value. Expressly setting null to a value that indicates “nothing” distinguishes it, while undefined implies that a value has not yet been allocated.
Variables and Data Structures
Developers keep data collections in data structures like arrays and objects. Although objects may be able to store more complicated data structures, arrays can store a list of values.
Conditional Statements and Loops
Code is executed depending on circumstances using conditional statements, such as if/else statements. For instance, show the user’s name if logged in; otherwise, display a login form.
Code is executed repeatedly using loops, such as the for and while statements. For instance, you may use a loop if you want to iterate through a list of objects and show them on the website.
Handling User Interactions with Events
Manipulating the Document Object Model (DOM)
For instance, you may use GreenSock to create intricate animations and transitions or jQuery to generate smooth scrolling effects.
Creating Interactive Forms
Working with APIs and AJAX
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