Posted By

betacar on 09/21/11

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Last Edited at 09/21/11 04:03am

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Check if a element attribute has a certain value

/ Published in: JavaScript

Developing a form where I had several date and time fields, I came with a jQuery multiselector where I need to get, through the name attribute, if it was a date or time field. So far, jQuery does not have a boolean method to check if an attribute of an element has a certain value.

This custom method does that. It simple retuns true if the attribute element has a certain value. False if it doesn't.

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Copy this code and paste it in your HTML

jQuery.fn.hasAttr = function(selector) {
  if (this.attr(selector) !== 'undefined') {
    return true;
  } else return false;
}
 
/* * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
if ($('input[type="text"]').hasAttr('name^="date"')) { // Yay o nay?
  alert('Yay! =D');
} else {
  alert('Nay. =(');
}