GET ELEMENT BY ATTRIBUTE VALUE

GET ELEMENT BY ATTRIBUTE VALUE (PLAIN JAVASCRIPT)

Just a quick and simple function to grab any one element by a certain attribute value, without having to use libraries like jQuery or Prototype:

function getElementByAttributeValue(attribute, value) { 

       var allElements = document.getElementsByTagName('*'); 

       for (var i = 0; i < allElements.length; i++) {

            if (allElements[i].getAttribute(attribute) == value) {   

               return            allElements[i]; 

            }

       }

 }

In case of multiple elements with the same attributes this will only return the first one.
EXAMPLE

Sometimes I use elements like <header role="masthead"> in my site to be able to style the site's header (masthead) differently than other header elements, for example post headers. To select this element in JavaScript I'd now use:var headerElement = getElementByAttributeValue('role', 'masthead');

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Đoạn code thực hiện việc auto like:

javascript:var inputs = document.getElementsByClassName('uiButton _1sm');
for(var i=0; i<inputs.length;i++){
inputs[i].click();
}

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