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JavaScript Interpolation

Indu khan
Indu khan
169 Points
Posted by Indu khan
Indu khan
169 Points

What is the use of document.querySelector() ??

What is the use of document.querySelector() ??

2 Answers

Austin Whipple
Austin Whipple
29,725 Points
Austin Whipple
Austin Whipple
29,725 Points

Indu,

From MDN documentation:

Returns the first Element within the document that matches the specified selector, or group of selectors.

Essentially, this give you some options to explore and modify the DOM. With this you can select elements matching the selector you specify to save and/or manipulate as you see fit.

As an aside, if you're using jQuery, you'll probably never use this particular bit of code and just use $('.mySelector') and such to traverse the DOM.

Indu khan
Indu khan
169 Points
Indu khan
Indu khan
169 Points

Can you give me an example?

Austin Whipple
Austin Whipple
29,725 Points
Austin Whipple
Austin Whipple
29,725 Points

There are a couple examples in that MDN article. Are you trying to achieve something in particular using the document.querySelector() method?

gautam sharma
gautam sharma
564 Points
gautam sharma
gautam sharma
564 Points

example: to change color of heading document.querySelector('#heading').style.color = 'red';