Introduction To Advanced JavaScript with Examples Step By Step Tutorial Download PDF.We make This Course with the help of Stanford university.
Introduction To JavaScript
- a lightweight programming language (“scripting language”)
- used to make web pages interactive
- insert dynamic text into HTML (ex: user name)
- react to events (ex: page load user click)
- get information about a user’s computer (ex: browser type)
- perform calculations on user’s computer (ex: form validation)
JavaScript VS Java
- interpreted, not compiled
- more relaxed syntax and rules
- fewer and “looser” data types
- variables don’t need to be declared
- errors often silent (few exceptions)
- key construct is the function rather than the class
- “first-class” functions are used in many situations
- contained within a web page and integrates with its HTML/CSS content
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