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JavaScript Reference

Quick Reference

The window.localStorage object allows you to save key/value pairs in the browser.

				
					<!-- html element to place output -->
<p id="my_output"></p>

Getting the Item

				
					// variable
let my_name = localStorage.getItem('first_name');

// output to HTML my_element
document.getElementById('my_output').innerHTML = my_name;

Setting the Item

Either of the following will work.

				
					// set item
window.localStorage.setItem('first_name', 'Johnny');
				
			
				
					// set item
localStorage.setItem('first_name', 'Johnny');

Output

				
					Johnny

Syntax

Getting the Item

				
					localStorage.getItem(key);

Setting the Item

				
					window.localStorage.setItem(key, value);

// or

localStorage.setItem(key, value);

Removing the Item from Local Storage

				
					localStorage.removeItem(key);

Clearing Everything from Local Storage

				
					localStorage.clear();

We’d like to acknowledge that we learned a great deal of our coding from W3Schools and TutorialsPoint, borrowing heavily from their teaching process and excellent code examples. We highly recommend both sites to deepen your experience, and further your coding journey. We’re just hitting the basics here at 1SMARTchicken.

JavaScript
HTML
CSS
jQuery
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Why 1SMARTchicken?

This site was built and is maintained to benefit my autistic son.
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My Son's Name is Johnny

He was diagnosed as autistic quite late, at age four...
His story

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JAVASCRIPT NOTES:

  • When using JavaScript, single or double quotation marks are acceptable and work identically to one another; choose whichever you prefer, and stay consistent
  • JavaScript is a case-sensitive language; firstName is NOT the same as firstname
  • Arrays count starting from zero NOT one; so item 1 is position [0], item 2 is position [1], and item 3 is position [2] … and so on
  • JavaScript variables must begin with a letter, $, or _
  • JavaScript variables are case sensitive (x is not the same as X)

Feedback

If you see an error on the page or the code itself is incorrect or incomplete, or just plain wrong, please let us know. We’re always learning. NOTE: we do not sell your information and will not send you spam emails.

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