Clever Date

A javascript library (<10kB) to show an intelligent date refreshed at regular intervals.

Demo

A demo is available here.

Supported languages

Languages defined bellow are fully supported but you can add your own rules with other languages.

• English
• Français

You can also contribute and suggest translations with a pull request.

Example

Add an attribute to your date with the corresponding timestamp.

<div data-clever-date="1579950627">26/01/2020 12h12</div>
<div data-clever-date="1580037027">25/01/2020 12h12</div>

Start the script:

CleverDate.start();

Let's see the result:

<div title="26/01/2020 12h12">2 minutes ago</div>
<div title="25/01/2020 12h12">Yesterday at 12:12</div>

Some possible results:

• Just now / A l'instant
• 2 minutes ago / Il y a 2 minutes
• 2 hours ago / Il y a 2 heures
• Today at 11:46 / Aujourd'hui à 11h46
• Yesterday at 11:46 / Hier à 11h46

Install

ES6

npm install @date-js/clever-date

import CleverDate from '@date-js/clever-date';

Otherwise

<script src="https://cdn.jsdelivr.net/npm/@date-js/clever-date@2.0"></script>

Usage

Start the process :

CleverDate.start();

Stop the process:

CleverDate.stop();

If you add element dynamically.

window.dispatch(new Event('clever-date.update'));

Customize it

You have the full possibility to customize your rules by passing your configuration.

var configuration = {
    refresh: 5, // The minimal refreshing time
    selector: 'data-clever-date', // Elements with this attribute will be parsed
    rules: [
        {
             condition: function(dateIntervalItem) { return dateIntervalItem.day >= 365*10; }, text: {
                 fr: "Il y a %dd jour{%dd||s} (année %Y)",
                 en: "%dd day{%dd||s} ago (year %Y)"
             }
        }
    ]
}

CleverDate.start(configuration);

How create rules ?

You can see examples in default rules file.

A rule is composed of some elements:

condition

A callback which returns true if the rule matches.
DateInterval is injected in the callback: see DateInterval.ts for more information.

refresh

For improving performances, it's not necessary to analyse and parse your rule each time.

• null: never analysed again
• undefined: use default refreshing time
• number: seconds between analyses

text

An object with the text for each language that you want to target.