Introduction to JavaScript Counter
Counter is one of the important components for using dashboards in the application while we used in the web application it will be creating with some script codings and also it makes a simple vote counter for to count the number of items in the packages,votes.In real scenarios mainly it uses the API called Pusher for creating and using the techniques called node.js application with the help of these packages we will create our own customized views and also it carefully listens the changes especially to the number of votes for an individual item.
Syntax and Parameters
In basically javascript uses the functions and parameters even though the initialized variables are assigned with the proper syntax especially it comes under the client side environment also its validated within the browser itself.In Javascript counter is one of the feature for the UI interactions it will be implemented in one or more ways like we have to initialized and declared the count variables and another way is we have used Pusher API for counting the user-defined customized views in the web page.
<html>
<head>
<script>
var v= 60;
var v1 =setInterval(functionname,1000);
</script></head>
<body></body>
</html>
Using the above codes we will call the some default methods for binding the datas without encryption.For each and every channel the voter count will be varied depends upon the initialized the voter variable in script.
How is Counter done in JavaScript?
We can use many different api’s in script but each and every api have their own features with both advantages and dis-advantages.For that Pusher API is one of the api it will used for the real world user counts for the web based applications with the help of the methods we will store and fetch the datas in the databases.Its one of the easiest method for adding the realtime functionalities to the applications.Because each and every web based applications will signup the free accounts if the user is not signed in the previous time.It can be created the apps, copy out the app credentials like APP ID,Secret Keys or any other both Encryption and Decryption datas from the “App Keys” sections so it will be needing for these our own app interactions with pusher based apis.
Sometimes counters are implemented using defaut frameworks like jquery with counter plugins Apart from that javascript have some default plugins like scroll-triggered Counter Plugin it comes under the purecounter.js because it’s based upon the user requirement for counting the datas in the UI.Whenever we used html codes it must be used on the dom elements that will needed for handling the user datas into the browser it also stores in the browser cache for temporary storage.The dom element is to get the user text datas whatever they typed in the fields and displayed it in the total words which have been already typed in the fields of the application.We need to make two functions in the javascript it takes the value of antextarea elements for to calculate the total words and it will be displayed it on placeholder element.
Examples of JavaScript Counter
Following are the examples as given below:
Example #1
Code:
<!DOCTYPEhtml>
<html>
<head>
<scripttype="text/javascript">
functiondemo() {
var d = document.getElementById ("first");
if (window.getComputedStyle) {
var comp = window.getComputedStyle (d, null);
try {
var v = comp.getPropertyCSSValue ("content");
try {
varcvalue = null;
if (v) {
if (v.cssValueType == CSSValue.CSS_PRIMITIVE_VALUE) {
if (v.primitiveType == CSSPrimitiveValue.CSS_COUNTER) {
cvalue = value.getCounterValue ();
}
}
else {
if (v.cssValueType == CSSValue.CSS_VALUE_LIST) {
if (v.length> 0) {
if (v[0].primitiveType == CSSPrimitiveValue.CSS_COUNTER) {
counterValue = v[0].getCounterValue ();
}
}
}
}
}
if (cvalue) {
alert ("(identifier: " + cvalue.identifier +
", listStyle: " + cvalue.listStyle +
", separator: " + cvalue.separator + ")");
}
else {
alert ("The value of the counter-increment property is not a counter function!");
}
}
catch (e) {
alert ("Please find the error your browser does not support the getCounterValue method!");
}
}
catch (e) {
alert ("Please find the error your browser does not support the getPropertyCSSValue method!");
}
}
else {
alert ("Please find the error your browser does not support the getComputedStyle method!");
}
}
</script>
</head>
<body>
<divid="first"style="content: counter(c);">The html element is style="content: counter(c);"</div>
<br/>
<buttononclick="demo()">Welcome To My Domain!</button>
</body>
</html>
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Output:
Example #2
Code:
<!DOCTYPEHTML>
<html>
<head>
<metaname="viewport"content="width=device-width, initial-scale=1">
<style>
p {
display: inline;
font-size: 40px;
margin-top: 0px;
}
</style>
</head>
<body>
<pid="days"></p>
<pid="hours"></p>
<pid="mins"></p>
<pid="secs"></p>
<h2id="end"></h2>
<script>
var c = newDate("Jul 28, 2022 22:24:16").getTime();
var mf = setInterval(function() {
var n = new Date().getTime();
var t = c - n;
var da = Math.floor(t / (1000 * 60 * 60 * 24));
varho = Math.floor((t % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
varmins = Math.floor((t % (1000 * 60 * 60)) / (1000 * 60));
var sec = Math.floor((t % (1000 * 60)) / 1000);
document.getElementById("days").innerHTML = da + "d "
document.getElementById("hours").innerHTML = ho + "h "
document.getElementById("mins").innerHTML = mins + "m "
document.getElementById("secs").innerHTML = sec + "s "
if (t < 0) {
clearInterval(mf);
document.getElementById("days").innerHTML = ""
document.getElementById("hours").innerHTML = ""
document.getElementById("mins").innerHTML = ""
document.getElementById("secs").innerHTML = ""
document.getElementById("end").innerHTML = "TIMES UP Please try new dates!!";
}
}, 1000);
</script>
</body>
</html>
Output:
Example #3
Code:
<!DOCTYPEHTML>
<html>
<body>
<divid="first"></div>
<script>
vartf = 60;
var e = document.getElementById('first');
var t = setInterval(demo, 1000);
functiondemo() {
if (tf == -1) {
clearTimeout(t);
second();
} else {
e.innerHTML = tf + ' Time seconds for remaining';
tf--;
}
}
functionsecond() {
alert("Hi Welcome User");
}
</script>
</body>
</html>
Output:
Conclusion
Generally the JS is used for the snippet actions it will be available for all the scenarios.It increments the counter values automatically based upon requirements given by the user.If we need to change the customized times it will done the changes only in the scripts even though we are not touch with html codes.
Recommended Articles
This is a guide to JavaScript Counter. Here we also discuss the introduction and how does counter done in javascript? along with different examples and its code implementation. You may also have a look at the following articles to learn more –
