I'm reading through elements on the page (of all kinds) with JavaScript and modifying them if needed. When I do modify one of the elements, I want to leave a marker behind to say that I modified it. Then later, I can read through the elements on...
I have a javascript function that tries to determine whether a div is visible and does various processes with that variable. I am successfully able to swap an elements visibility by changing it's display between none and block; but I cannot store...
I have just noticed, that if I give a custom attribute to an html element, for example:  <input type="button" id="my_button" custom_attr="custom_attr_text" value="value_text" />   then i can retrieve it like this...
I have this input line which I am trying to extract the text of the value attribute:  <input type="text" class="card-input small-font" ng-value="paymentVia.typeDisplay" readonly="" value="Credit card">...
I have some input fields with a specific class. They all have a data attribute, say data-somedata with an integer value. I have to calculate the sum of these data attributes. I tried to use getAttribute in combination with getElementsByClassName, but...
I am really new to JavaScript, but here's what I am starting with:  var anchors = document.body.getElementsByTagName("a"); for(var i=0; i < anchors.length; i++) {   var anc = anchors[i];   if (anc.getAttribute("href") == "/...
I've searched quite a bit on both google and stackoverflow, but a lack of knowledge on how to ask the question (or even if I'm asking the right question at all) is making it hard to find pertinent information.  I have a simple block of code t...
I am trying to select multiple classes on a page and change the aria-checked="false" to aria-checked="true". Here is the script I am using now:  elms=document.getElementsByClassName("d-va-p a-f-e"); for (i=0;i<elms.length;i...
I have created HTML INPUT element with type="RANGE" and with id="slider". Why cannot I access its value using getAttribute("value") method? Debugger shows that there is an attribute named "value" with some value which...

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