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Tag Archives: id

Finding duplicate ID’s on an HTML page

Written by Eneko Alonso on May 6, 2011 — Leave a Comment

Looks like sometimes we forgot element ID’s are meant to be unique on a HTML page. Here is a little bit of code I just wrote to find duplicate ID’s on a page (run the code on your browser’s javascript console): var idList = {}; var nodes = document.getElementsByClassName(''); for (var i in nodes) { [...]

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Getting unique timestamps in Javascript

Written by Eneko Alonso on April 14, 2010 — Leave a Comment

Sometimes, when you want to generate unique id’s or similar, it is very common to use the current date as unix timestamp (new Date().getTime() or $time() in Mootools). The problem is that if we get the current timestamp multiple times too fast, it may happen that we get exactly the same value. Actually, this will [...]

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This is a blog about development, focused mainly on Javascript but also other languages like python, shell scripts and more.

About the author

Eneko Alonso is a software engineer and UI developer with more than eight years of experience in software and web development. He lives in San Luis Obispo, California and works at LEVEL Studios.

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