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Find Elements in a Webpage Using JavaScript in Selenium
We can find elements in a web page with the help of JavaScript. We can also validate the elements returned by the JavaScript methods in the browser Console (Pressing F12). JavaScript methods to find elements are −
getElementsByTagname
To obtain a collection of elements with the matching tagname passed as parameter to the method. If there are no matching elements, an empty collection is returned.
Syntax
document.getElementsByTagName("<name of tag>")
To get the first matching element,
document.getElementsByTagName("<name of tag>")[0]
getElementsByName
To obtain a collection of elements with the matching value of name attribute passed as parameter to the method. If there are no matching elements, an empty collection is returned.
Syntax
document.getElementsByName("<value of name attribute>")
To get the first matching element,
document.getElementsByName("<value of name attribute >")[0]
getElementsByClassName
To obtain a collection of elements with the matching value of class attribute passed as parameter to the method. If there are no matching elements, an empty collection is returned.
Syntax
document.getElementsByClassName("<value of class attribute>")
To get the first matching element,
document.getElementsByClassName("<value of class attribute >")[0]
getElementId
To obtain an element with the matching value of id attribute passed as parameter to the method. It normally yields a single element since the value of the id attribute is unique in a page.
If there is no matching element, null is returned.
Syntax
document.getElementById("<value of id attribute>")
querySelector
To obtain an element with the matching value of css expression passed as parameter to the method. If there is no matching element, null is returned.
Syntax
document.querySelector("<css expression>")
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