how to get a tag value in href with javascript-CodePudding

There's a piece of html code

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Code</title>
<body>
<div id="suggestions">
content
<p><a href="/[email protected]&pd=187&name=kljljl">link</a></p>
<p><a href="/[email protected]&pd=187&name=afdsfsa">link</a></p>
</div>
<div id="list">
    kklj
    <p><a href="/[email protected]&pd=187&name=4fdaf">link1</a></p>
    dll
    <p><a href="/[email protected]&pd=187&name=afdsf">link2</a></p>
    fdf
    <p><a href="/[email protected]&pd=187&name=hgfhd">link3</a></p>
    fdsaf
    <p><a href="/[email protected]&pd=187&name=ertewt">link4</a></p>
    fdsaf
    <p><a href="/[email protected]&pd=187&name=gfdsg">link7</a></p>
    fdasf
    <p><a href="/[email protected]&pd=187&name=fdsgfgsg">link3</a></p>
    fdsaf
    <p><a href="/[email protected]&pd=187&name=cxvbvcb">link8</a></p>
    fdsafd
    <p><a href="/[email protected]&pd=187&name=ujjhgh">link3</a></p>
</div>
<script>
document.addEventListener('click', function(e){
  
})
</script>
</html>

I want to be able to get the email value and pd value of the current href when I click on a href under list. I can get it easily with JQuery, but I don't know how to do without it. Any ideas? Thank you.

CodePudding user response：

this way

const List_els = document.querySelector('#list')

List_els.addEventListener('click', function(e)
  {
  if (!e.target.matches('a')) return // verify where the click is done
  
  e.preventDefault()  // disable the href page loading
  
    let url = new URL(e.target.href)
  
  console.clear()
  console.log( url.searchParams.get('email'))
  setTimeout(console.clear,3000)
  })

p { margin: .1em 0 0 2em ; }

<div id="suggestions">
  content
  <p><a href="/[email protected]&pd=187&name=kljljl">link</a></p>
  <p><a href="/[email protected]&pd=187&name=afdsfsa">link</a></p>
</div>
<div id="list">
  kklj
  <p><a href="/[email protected]&pd=187&name=4fdaf">link1</a></p>
  dll
  <p><a href="/[email protected]&pd=187&name=afdsf">link2</a></p>
  fdf
  <p><a href="/[email protected]&pd=187&name=hgfhd">link3</a></p>
  fdsaf
  <p><a href="/[email protected]&pd=187&name=ertewt">link4</a></p>
  fdsaf
  <p><a href="/[email protected]&pd=187&name=gfdsg">link7</a></p>
  fdasf
  <p><a href="/[email protected]&pd=187&name=fdsgfgsg">link3</a></p>
  fdsaf
  <p><a href="/[email protected]&pd=187&name=cxvbvcb">link8</a></p>
  fdsafd
  <p><a href="/[email protected]&pd=187&name=ujjhgh">link3</a></p>
</div>

CodePudding user response：

Here I've written a function looks like jQuery but it's pure Vanilla JavaScript. It's the standard way to get value from any URL. Here you justt have to call this function to get search data. You can apply multiple events here like click, mouseenter etc

 QueryURL('a').on( 'click', response => {
    console.log(response)
} )

Attachment / Main code is here

window.onload = function () {

    /**
     * 
     * 
     * Get url query value
     * @param selector refers to anchor link
     * 
     */ 

    const QueryURL = selector => {
        const methods = {
            element : document.querySelectorAll( selector ), 
            on: function( eventName, callback ) {
                this.element.forEach( btn => {
                    btn.addEventListener( eventName, ev => {
                        ev.preventDefault();
                        ev.stopPropagation();
                        if( ev.target.href ) {
                            const url = new URL(ev.target.href);
                            const searchParams = new URLSearchParams( url.search );
                            callback( Object.fromEntries(searchParams) )
                            return false;
                        }
                    })
                } )
            }
        }

        return methods;
    } 

    /*
    * ========================================
    * Init / Call the function
    * ========================================
    */ 
    
    QueryURL('a').on( 'click', response => {
        console.log(response)
    } )
    
    
}

<div id="suggestions">
    content
    <p><a href="/[email protected]&pd=187&name=kljljl">link</a></p>
    <p><a href="/[email protected]&pd=187&name=afdsfsa">link</a></p>
    </div>
    <div id="list">
        kklj
        <p><a href="/[email protected]&pd=187&name=4fdaf">link1</a></p>
        dll
        <p><a href="/[email protected]&pd=187&name=afdsf">link2</a></p>
        fdf
        <p><a href="/[email protected]&pd=187&name=hgfhd">link3</a></p>
        fdsaf
        <p><a href="/[email protected]&pd=187&name=ertewt">link4</a></p>
        fdsaf
        <p><a href="/[email protected]&pd=187&name=gfdsg">link7</a></p>
        fdasf
        <p><a href="/[email protected]&pd=187&name=fdsgfgsg">link3</a></p>
        fdsaf
        <p><a href="/[email protected]&pd=187&name=cxvbvcb">link8</a></p>
        fdsafd
        <p><a href="/[email protected]&pd=187&name=ujjhgh">link3</a></p>
    </div>