javascript - Using Classes Instead of IDs in HTML5 -

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in another post, advised not use ids, intead use classes in html forms buttons.

i'm new html5 , javascript, how use button class, , assign event handler button?

possible solution:

<!doctype html> <html> <head> <title>html button tag</title> </head> <body> <form> <button name="button" value="ok" type="button">click me</button> </form> </body> </html>

i use document.getelementbyname() , assign button handler, correct?

seriously, saying that:

ids considered bad practice quite time in html, preferred method classes

...are plain wrong! id's , classes have separate usage areas, in cases overlap. automated testing, , css, id's extremely useful. never afraid use them!

as answer question, there several options. either find element in javascript, , assign button handler, or add onclick-function, , assign directly in button tag, this:

<button ... onclick="functiontobecalled()">click me</button>

then define function you'd execute in javascript.


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