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CodePrimer

Search a living directory of web syntax. Pick a problem, copy a working sample, then adapt it.

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Tags basics 48 php 45 javascript 24 html 23 css 18 dom 18 forms 16 database 14 layout 8 sql 7 events 6 arrays 6 pdo 6 http 5 control-flow 5 a11y 5 security 4 responsive 3 components 3 media 3 flexbox 3 functions 2 auth 2 selectors 2

6 snippets

JavaScript Beginner

addEventListener click

How do I make a button show an alert?

Dom javascript dom events
JavaScript Beginner

Arrow function event listener

Can I use an arrow function for events?

Dom javascript dom events
JavaScript Beginner

Live input event

How do I react as the user types?

Dom javascript forms dom
JavaScript Beginner

change event on select

How do I detect dropdown changes?

Dom javascript forms dom
JavaScript Beginner

mouseover tooltip style

How do I run code on hover?

Dom javascript dom events
JavaScript Beginner

Keyboard keydown shortcut

How do I listen for a key press?

Dom javascript dom events

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