Javascript Literals

Instructions

1. Using a method of your choice, find examples of Javascript code online, for example:
   • Search "javascript examples";
   • Find your favourite Javascript library;
   • Inspect live websites
2. Within the code you find, identify examples of literals for each of the following value types (they don't all have to be from the same example):
   • string
   • number
   • boolean
   • null
   • array
   • optional: object
   • optional: function
3. In a separate file, record:
   1. the literal example;
   2. the line(s) of code you found it in;
   3. a link to the original source (if available).

Example Literals

String

• "demo"
  • line: document.getElementById("demo").innerHTML = x;
  • source

Number

• 6
  • line: x = 6;
  • source

Boolean

• true
  • line: assert.ok(config.setSepChr('/') === true);
  • source

Null

• null
  • line: if ( data == null && fn == null ) {
  • source

Array

• ['generateLabels', 'filter', 'sort']
  • line: _scriptable: (name) => !['generateLabels', 'filter', 'sort'].includes(name),
  • source

Object

{
  '&': '&',
  '<': '&lt;',
  '>': '&gt;',
  '"': '&quot;',
  "'": '&#39;'
}

line:

const htmlEscapes = {
  '&': '&',
  '<': '&lt;',
  '>': '&gt;',
  '"': '&quot;',
  "'": '&#39;'
}

• source

Function

function(width, height) {
  return width * height;
}

line:

const getRectArea = function(width, height) {
  return width * height;
};

• source