A simple yet configurable native javascript counter you can count on.

1.4kb GZIPPED Lightweight Javascript Counter

Demo

Install

NPM

npm i --save @srexi/purecounterjs

In your app.js import and initialize the module like normal.

import PureCounter from "@srexi/purecounterjs";
const pure = new PureCounter();

Vanilla

If you wish to skip the modular build and NOT use npm you can use the vanilla build like so:

CDN

<html>
    <head>
        ...
    </head>
    <body>
        ...

        <script src="https://cdn.jsdelivr.net/npm/@srexi/purecounterjs/dist/purecounter_vanilla.js"></script>
        <script>
            new PureCounter();
        </script>
    </body>
</html>

Self-hosted

Download the [dist/purecounter_vanilla.js]() file(for the minified version) or the [js/purecounter.js]() file (for the prettified) version and include it right before your closing body tag:

<html>
    <head>
        ...
    </head>
    <body>
        ...

        <script src="https://github.com/srexi/purecounterjs/raw/main/dist/purecounter_vanilla.js"></script>
        <script>
            new PureCounter();
        </script>
    </body>
</html>

You can also take the file's contents and paste it into your bundle.js file.

How to use it:

1. Initialize PureCounter:

new PureCounter();

// Or you can customize it to override the default config.
// Here is the default configuration for all elements with class 'filesizecount'
new PureCounter({
    // Setting that can't' be overriden on pre-element
    selector: ".purecounter", // HTML query selector for specific element

    // Settings that can be overridden on a per-element basis, by `data-purecounter-*` attributes:
    start: 0, // Starting number [uint]
    end: 100, // End number [uint]
    duration: 2, // The time in seconds for the animation to complete [seconds]
    delay: 10, // The delay between each iteration (the default of 10 will produce 100 fps) [miliseconds]
    once: true, // Counting at once or recount when the element in view [boolean]
    pulse: false, // Repeat count for a certain time [boolean:false|seconds]
    decimals: 0, // How many decimal places to show. [uint]
    legacy: true, // If this is true it will use the scroll event listener on browsers
    filesizing: false, // This will enable/disable File Size format [boolean]
    currency: false, // This will enable/disable the Currency format. Use it to set the symbol too [boolean|char|string]
    formater: "us-US", // Number toLocaleString locale/format, by default, is "en-US" [string|boolean:false]
    separator: false, // This will enable/disable comma separator for thousands. Use it to set the symbol too [boolean|char|string]
});

2. Set the element:

To use it add the class: 'purecounter' to an element.

<p>I can count: <span class="purecounter">0</span></p>

Lazy Loading Is Applied Out Of The Box

*You can configure it per element by adding a `data-purecounter-` attribute, here's an example:**

<p>
    It's over (wait for it):
    <span
        data-purecounter-start="0"
        data-purecounter-end="9001"
        data-purecounter-currency="$"
        class="purecounter"
        >0</span
    >!!!
</p>

The end of this count will be showing $9.0 K.
Most settings can be overridden on a pre-element basis. The element configuration will only be used on that element.

Default Values:

If you do not override the methods default to these values:

start: 0 [uint]
end: 100 [uint]
duration: 2 [seconds|uint]
delay: 10 [milliseconds|uint]
once: true [boolean]
pulse: false [boolean:false|seconds|uint]
decimals: 0 [uint]
legacy: true [boolean]
filesizing: false [boolean]
currency: false [boolean|char|string]
separator: false [boolean|char|string]
selector: '.purecounter' [query selector]

Browser Support

Chrome/Edge/Opera: Yes
Firefox: Yes
IE: 9+
Safari: 7+
MISSING A BROWSER? Make A Pull Request

srexi / purecounterjs

readme