Add Attribute To Class Javascript Code Example


Example 1: javascript change attribute

var element = document.getElementById("elemId"); element.setAttribute("attributeName", "value");

Example 2: set attribute javascript

Element.setAttribute(name, value);

Example 3: put new attribute on html tag using javascript

// Here's what you do for the style attribute span.setAttribute("style", "width:110%;float:center;left-margin:-10px;top-margin:-10;");

Example 4: set property dom javascrpt

document.getElementsByTagName("H1")[0].setAttribute("class", "democlass");

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