Attr: value property
The value
property of the Attr
interface contains the value of the attribute.
Value
A string representing the attribute value.
Example
The following example displays the current value of the attribute test
. Clicking on the button will change it to a different value, and read it again to update the displayed value.
HTML
html
<label test="initial value"></label>
<button>Click me to set test to <code>"a new value"</code>…</button>
<p>
Current value of the <code>test</code> attribute:
<output id="result">None.</output>
</p>
JavaScript
js
const element = document.querySelector("label");
const button = document.querySelector("button");
const result = document.querySelector("#result");
const attribute = element.attributes[0];
result.value = attribute.value;
button.addEventListener("click", () => {
attribute.value = "a new value";
result.value = attribute.value;
});
Specifications
Specification |
---|
DOM Standard # dom-attr-value |
Browser compatibility
BCD tables only load in the browser