jQuery Form Validation Tutorial: Using jQuery Validate in Practice
How I set up jQuery form validation with the Validate plugin: rules and messages, class-based rules, submitHandler, a…
Category
Frontend Development
Frontend development is building the part of a website or app that runs in the browser, using HTML for structure, CSS for presentation and JavaScript for behaviour. Modern frontend work adds component frameworks such as React, build tools, accessibility and performance tuning for Core Web Vitals. The aim is an interface that loads fast on any device and stays maintainable as features pile up.
35 articles
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jQuery .each() and $.each(): Looping Through Elements, Arrays, and Objects
How I use jQuery .each() and $.each() on elements, arrays and objects: break and continue, the this trap,…
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jQuery Event Handling: .on(), .click(), and Event Delegation
How I handle events in jQuery 1.9: .on() vs .click(), delegation for elements added later, this vs e.target,…
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How to Fix “jQuery is Not Defined” and “$ is Not Defined” Errors
How I track down "jQuery is not defined" and "$ is not defined" in two minutes: six real…
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jQuery append(), prepend(), and html(): DOM Insertion Methods Compared
How I choose between jQuery append, prepend, html and text: insert positions, return values, moving vs cloning, why…
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jQuery AJAX Tutorial: $.ajax, GET, POST, and Error Handling
How I write jQuery AJAX calls that fail gracefully: $.ajax GET and POST, sending JSON, done, fail and…
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jQuery Selectors Explained: ID, Class, Attribute, and Pseudo-Selectors
How I pick jQuery selectors on real pages: ID, class, attribute and pseudo-selectors, form filters, the zero-based :even…
