How Can I Extract Attribute Values from HTML Elements Using JavaScript or jQuery?

Extract Attribute Values from HTML Elements Using JavaScript/jQuery

Getting all attributes from a HTML element as an array can be achieved using several methods. One option is to leverage the attributes node list directly:

var el = document.getElementById("someId");
for (var i = 0, atts = el.attributes, n = atts.length, arr = []; i < n; i++){
    arr.push(atts[i].nodeName);
}

This method retrieves only the attribute names. To obtain the corresponding values, utilize the nodeValue property:

var nodes=[], values=[];
for (var att, i = 0, atts = el.attributes, n = atts.length; i < n; i++){
    att = atts[i];
    nodes.push(att.nodeName);
    values.push(att.nodeValue);
}

Alternatively, you can employ the jQuery library to simplify the process:

var attrs = $("#someId").prop("attributes");
for (var i = 0; i < attrs.length; i++){
    console.log(attrs[i].nodeName + ": " + attrs[i].value);
}

This method provides both attribute names and values in a user-friendly format. Additionally, if you encounter issues accessing the element directly, you can utilize the jQuery.contents() method to obtain the element's content:

var content = $("#someId").contents();
for (var i = 0, atts = content.prop("attributes"), n = atts.length, arr = []; i < n; i++){
    arr.push(atts[i].nodeName);
}

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