JAVASCRIPT

js queryselectorall

var container = document.querySelector("#test");
var matches = container.querySelectorAll("div.highlighted > p");

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");

queryselectorall in jquery

// This will select all element depending on class name
$(className)

querySelectorAll example

// Obtain a NodeList of all of the <p> elements in the document
const matches = document.querySelectorAll("p");

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.

js queryselectorall

var matches = document.querySelectorAll("p");

js querySelectorAll

// https://www.google.com/
// this puts a border around the 'a' tags of 'Google offered in' section.

// within this id find all the 'a' tags
var languages = document.querySelectorAll("#SIvCob a");


// loop through all the a tags a add a border to the tags
for(var i = 0; i < languages.length; i++){
    document.querySelectorAll("#SIvCob a")[i].style.border = "1px solid black";

}

queryselectorall

const matches = document.querySelectorAll("p");

js queryselectorall

elementList = parentNode.querySelectorAll(selectors);

queryselectorall

elementList = parentNode.querySelectorAll(selectors);

js queryselectorall

var matches = document.querySelectorAll("div.note, div.alert");