Chapter 2 - JavaScript Syntax, Exercises of Javascript programming

JavaScript semicolons are optional. It does not strictly require semicolons. Case Sensitivity. JavaScript is a case-sensitive language.

Typology: Exercises

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Chapter 2 - JavaScript Syntax
JavaScript syntax refers to the set of rules that determine how JavaScript programs
are built by the programmer and interpreted by the browser.
<script>……. </script> Html tag is use to implantation of JavaScript statements.
You can place the <script> tags, which contain your JavaScript, anywhere on your
web page, but it is usually recommended that you keep it in the <head> tags. Or
we can add that <script> tag to the bottom of the file outside to the Html or in the
<body> tag of the Html code.
There are two ways to add JavaScript in HTML.
1. Embed JavaScript in HTML
JavaScript code will be written as follows:
<script>
JavaScript Code
</script>
And the alternate way is
2. External JavaScript File
This makes editing the code much easier for the programmer.
‘src’ , ‘type’ and ‘language’ are most common attributes of <script> tag.
<script language =javascript src= my_file.js type= text/javascript>
</script>
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Chapter 2 - JavaScript Syntax

JavaScript syntax refers to the set of rules that determine how JavaScript programs are built by the programmer and interpreted by the browser. Html tag is use to implantation of JavaScript statements. You can place the And the alternate way is 2. External JavaScript File This makes editing the code much easier for the programmer. ‘src’ , ‘type’ and ‘language’ are most common attributes of

Syntax Basics

Understanding statements, variable naming, whitespace, and other basic

JavaScript syntax.

Variable Life Cycle

Simple variable declaration

A) Single line Comment

B) Multi line Comment

Semicolons

JavaScript semicolons are optional. It does not strictly require semicolons.

Case Sensitivity

JavaScript is a case-sensitive language. This means that keywords, function names variables and any other identifiers must always be typed with a consistent capitalization of letters. For example:

  1. The ‘return’ keyword, must be typed “return”, not “Return” or “RETURN”.

Output