Select Elements with Class Attribute using jQuery

Step 0: Add class to the HTML element(s) you wish to select

<h2 class="redHeading">Welcome</h2>
<p>A passage of text</p>
<h2 class="redHeading">Thank you</h2>

COPY

Step 1: Add script to HTML file or js file

<script>
	var redHeaders = $(".redHeading"); 
</script>

COPY

Make sure jQuery has been already added to project. Can be applied to one or multiple element(s).

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Comments

Select HTML elements with jQuery

@new_roman11 #html #javascript

How to Select All Elements with jQuery How to Select Specific Elements with jQuery Select Elements with Class Attribute using jQuery

#html #javascript #nodejs

How to Save HTML Form Data in JSON - Express

<form action="/new" method="post">
 
  <input name="title" type="text">
  <input name="description" type="text">
  <button type="submit">Submit Form</button>
 
</form>

> More steps

#javascript

Get URL and URL Parts in JavaScript

var newURL = window.location.protocol + "//" + window.location.host + "/" + window.location.pathname + window.location.search

#javascript #nodejs #commandline

HTTPS Redirect in Nodejs

npm install heroku-ssl-redirect

> More steps

#javascript #nodejs

Append a Value to an Array

db.students.update(
   { _id: 1 },
   { $push: { scores: 89 } }
)

#javascript

Full Stack Developer

function full_stack_developer() {
    full_stack_developer();
}

#html #javascript #jsfunctions #dom #dommanipulation

getAttribute() - how to get the value of any attribute of HTML element

<html>

<input id="contact" name="address">

<script>

    var x = document.getElementById("contact").getAttribute('name');

</script>

</html>

#javascript

Replace Textarea with Codemirror editor

<link rel="stylesheet" type="text/css" href="plugin/codemirror/lib/codemirror.css">

<body>
	<textarea class="codemirror-textarea"></textarea>
</body>

<script>

$(document).ready(function(){
    var codeText = $(".codemirror-textarea")[0];
    var editor = CodeMirror.fromTextArea(codeText, {
        lineNumbers : true
    });
});

</script>

<script type="text/javascript" src="plugin/codemirror/lib/codemirror.js"></script>

#javascript

Mapping an Object

const object1 = {
  a: 'somestring',
  b: 42
};

for (let [key, value] of Object.entries(object1)) {
  console.log(`${key}: ${value}`);
}

#javascript #javascript #functions #parameters

Required Parameters for Functions in JavaScript

 const isRequired = () => { throw new Error('param is required'); };

const hello = (name = isRequired()) => { console.log(`hello ${name}`) };

// These will throw errors
hello();
hello(undefined);

// These will not
hello(null);
hello('David');
The idea here is that it uses default parameters, like how the b parameter here has a default if you don’t send it anything:
function multiply(a, b = 1) {
  return a * b;
}

#javascript #nodejs

Save to MongoDB without Duplicates Using Mongoose

var mongoose = require('mongoose');
var Schema = mongoose.Schema;

const exampleSchema = new Schema({
    title: { type: String , required: true},
    content: [{type: String}]
});


var Example = mongoose.model('Example', exampleSchema);
module.exports = Example;

> More steps

#javascript

Copy Text to Clipboard with Line Breaks

function copyToClipboard(){

    var codeToBeCopied = document.getElementById('code-snippet').innerText;
    var emptyArea = document.createElement('TEXTAREA');
    emptyArea.innerHTML = codeToBeCopied;
    const parentElement = document.getElementById('post-title');
    parentElement.appendChild(emptyArea);

    emptyArea.select();
    document.execCommand('copy');

    parentElement.removeChild(emptyArea);
    M.toast({html: 'Code copied to clipboard'})

    }

#javascript #jquery

jQuery.post() - AJAX for post requests

$.ajax({
  type: "POST",
  url: url,
  data: data,
  success: success,
  dataType: dataType
});

#javascript #promises #howto

How to Get the Domain From A URL Using Javascript

var url = "http://scratch99.com/web-development/javascript/";
var urlParts = url.replace('http://','').replace('https://','').split(/[/?#]/);
var domain = urlParts[0];

#javascript

Add event listener to multiple buttons with the same class

    btns = document.getElementsByClassName("saveBtn");
    for (var i = 0; i < btns.length; i++) {
        btns[i].addEventListener("click", function () {
			//Add function here
        });
    }

#javascript

Detect click outside element (vanilla JavaScript) - Stack Overflow

var specifiedElement = document.getElementById(%27a%27);

//I%27m using "click" but it works with any event
document.addEventListener(%27click%27, function(event) {
  var isClickInside = specifiedElement.contains(event.target);

  if (!isClickInside) {
    //the click was outside the specifiedElement, do something
  }
});

Select Elements with Class Attribute using jQuery

Step 0: Add class to the HTML element(s) you wish to select

Step 1: Add script to HTML file or js file

Save snippets that work from anywhere online with our extensions

Comments

More like this

Select HTML elements with jQuery

Browse more snippets >>

Select Elements with Class Attribute using jQuery

Step 0: Add class to the HTML element(s) you wish to select

Step 1: Add script to HTML file or js file

Save snippets that work from anywhere online with our extensions

Comments

More like this

Select HTML elements with jQuery

Browse more snippets >>

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