Switch on and switch off light in webpage using jQuery



Live preview:


its too dark here ! Switch on the light



Hi everyone and do you know how to code a bulb that you can glow and disable the glow of the bulb. Here I only used jQuery and css to glow the bulb and turn it off. I also used some JavaScript code to display a message for the the glow effect and else effect of the bulb. The switch or the button used here is connected to the jQuery to turn on the bulb and it turn off the bulb. The jQuery used here is connected to the CSS using the property toggleClass . I put a limit to the glow of the light using the division tag.

Do you want about the triple equal to (===) you that  Iused in the do you know for what purpose the triple equal to is used for. Here is the answer.

Strict equality (===) means values which we are comparing must have the same type. This means"2" will not be equal to 2 ("2"===2 it will return false) Type converting equality (==) means automatically it will covert the variable to value irrespective of data type; either it is a string or a number.


Dont forget to turn the light off because energy energy is precious 😅😅

See the following video to understand the working of the glowing bulb.

Video Preview:




As in the video given above, we can see the working of the bulb. The glowing effect and turning off of glowing effect of the bulb is shown in the above video.


The code of the given program is given below

Code:


<html>
<head>
<title>code by cs psyco </title>


<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>

<style>


.bulb2
{
background-color:#a6a6a6;
}

.bulb1
{
background-color:#ffff80;
border:2px solid black;

height:150px;
}
#bulb1
{
border:2px solid black;

height:150px;
}

img
{
width:100px;
height:150px;
margin-top:2%;

}


</style>

<script>
$(document).ready(function(){
$("button").click(function(){
$("#bulb1").toggleClass("bulb1");



});
});


function my() {
  var x = document.getElementById("myd");
  if (x.innerHTML === "switch off the light to save energy !") {
    x.innerHTML = "its too dark here ! Switch on the light";
  } else {
    x.innerHTML = "switch off the light to save energy !";
  }
}


</script>
</head>

<body>
<br />
<br />
<div class="bulb2" id="bulb1">
<center>

<div id="myd">
its too dark here ! Switch on the light
</div>
</center>
<div class="separator" style="clear: both; text-align: center;">
<img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiAecbaiH8_Z5Vq15xZDkz2iSL39szWT5eNz5wphnUKZoNGy4-KpJYDP319lM1uN_i-pujqqGLPtv9P1lLtt4YqGFVYx5RP_RQuMVUuofnHwRzaPek4LhwoHXb3sm1vxTICILCq7RsVQ85x/s320/light-bulb-png-15-light-bulb-icon-256.png" /></div>
</div>
<br />
<center>
<br />
<button onclick="my()">on/off</button>
</center>
</div>
</body>
</html>



Thank You...Stay Updated

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