JavaScript DOM HTML method: querySelector()
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The querySelector() method (when applied to
HTML
elements in the JavaScript
DOM) returns
first (child) element that matches specified CSSSelector.
It
has the following syntax with the following parameters. It returns the
object representing the first element that matches the specified CSSSelector, or null if no
matches are found. If the selector(s) is invalid then
it throws a SYNTAX_ERR exception.
element.querySelector(CSSSelectors)
Parameter
|
Required / Optional
|
Description
|
CSSSelectors
|
Required
|
String specifying one
or more CSSSelectors. For multiple selectors, separate each one with a
comma.
|
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