-
$()
- is an alias for document.querySelector()
. It allows you to select the first element that matches a given CSS selector. For example, $('div')
would return the first div element on the page.
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$$()
- is an alias for document.querySelectorAll()
. It returns an array of all elements that match a given CSS selector. For example, $$('div')
would return all div elements on the page.
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$0, $1, $2, ... $n
- are references to the elements you have recently selected in the Elements panel. $0
represents the most recently selected element, $1
represents the second most recent, and so on.
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$_
- represents the value of the most recently evaluated expression in the console.
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$x()
- allows you to query the DOM using XPath expressions. For example, $x("//div")
would return all div elements on the page.