what does queryselectorAll returns?
The querySelectorAll() method returns all elements in the document
that matches a specified CSS selector(s), as a static NodeList object.
The NodeList object represents a collection of nodes.
The nodes can be accessed by index numbers.
The index starts at 0.javascript queryselector
//Pretend there is a <p> with class "example"
const myParagraph = document.querySelector('.example');
//You can do many this with is
myParagraph.textContent = 'This is my new text';queryselectorall
//To obtain a NodeList of all of the <p> elements in the document:
const matches = document.querySelectorAll("p");
//This example returns a list of all <div> elements within the document with a class of either note or alert:
const matches = document.querySelectorAll("div.note, div.alert");
//Here, we get a list of <p> elements whose immediate parent element is a <div> with the class highlighted and which are located inside a container whose ID is test.
const container = document.querySelector("#test");
const matches = container.querySelectorAll("div.highlighted > p");queryselector function in javascript
/*The querySelector() method returns the first element that matches a specified
CSS selector(s) in the document. Note: The querySelector() method only returns
the first element that matches the specified selectors. To return all the
matches, use the querySelectorAll() method instead.*/
// for example
//for class
document.querySelector(".ClassName")
// for id
document.querySelector("#ID")
// etc.javascript queryselectorall
<article class="article first">
<div class="wrapper">
<div class="oferts">
<div class="pro"></div>
<h1>This is the Pro Version</h1>
</div>
<div class="oferts">
<div class="normal"></div>
<h1>This is the normal Version</h1>
</div>
</div>
</article>
// You will get a NodeList as Output
// Try to do : console.log(typeof(oferts)) And you will see the type
<script>
var articleFirst = document.querySelectorAll("article.first");
console.log(articleFirst)
var oferts = articleFirst[0].querySelectorAll(".oferts");
console.log(oferts)
</script>js queryselectorall
elementList = parentNode.querySelectorAll(selectors);Copyright © 2021 Codeinu
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