Technical Documentation

JavaScript and Java

JavaScript and Java are completely different languages, both in concept and design.

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JavaScript syntax:

function sayHello(name) {
  console.log("Hello, " + name);
}

JavaScript is interpreted
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Variables

In JavaScript, variables are containers for storing data values.

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Declaring Variables:

var x = 5;
var y = 6;
var z = x + y;

JavaScript variables are case sensitive.
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Operators

JavaScript has the following types of operators:

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Comparison Operators:

var x = 5;
var y = 6;
console.log(x == y);

Functions

A function is a block of code designed to perform a particular task.

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Function Declaration:

function myFunction(p1, p2) {
  return p1 * p2;
}

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Objects

An object is a collection of properties, and a property is an association between a name (or key) and a value.

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Creating Objects:

var person = {
  firstName: "John",
  lastName : "Doe",
  age : 50,
  eyeColor : "blue"
};

**Author:** ![bbsmooth](https://sea3.discourse-cdn.com/freecodecamp/user_avatar/forum.freecodecamp.org/bbsmooth/32/203556_2.png) [@bbsmooth](https://forum.freecodecamp.org/u/bbsmooth)\ **Post date:** [March 20, 2023, 3:37am UTC](https://forum.freecodecamp.org/t/technical-documentation-page-build-a-technical-documentation-page/599441/2 "2023-03-20T03:37:06Z")

**Author:** ![system](https://global.discourse-cdn.com/freecodecamp/original/3X/e/1/e1c433102e34b46dfaa3e15d13ab9a514b127078.svg) [@system](https://forum.freecodecamp.org/u/system)\ **Post date:** [September 18, 2023, 3:37pm UTC](https://forum.freecodecamp.org/t/technical-documentation-page-build-a-technical-documentation-page/599441/3 "2023-09-18T15:37:56Z")