Daty NPM | npm.io

daty

A tiny library to manage date objects.

:cloud: Installation

# Using npm
npm install --save daty

# Using yarn
yarn add daty

:clipboard: Example

const Daty = require("daty");

// You can initialize Daty using the date parameters
const d = new Daty(2015, 11, 16, 18, 42);

// ...but you have friendly date formatting
console.log(d.format("LL"));
// => December 16, 2015

console.log(d.format("LLLL"));
// => Wednesday, December 16, 2015 6:42 PM

console.log(d.utc().format("LLLL"));
// => Wednesday, December 16, 2015 4:42 PM

// Go back in the history, when the Romanian revolution started in 1989
// We will clone the current date since we will need it later.
// Also, subtract 26 years.
const revolutionDate = d.clone().subtract(26, "years");
console.log(revolutionDate.format("LLL"));
// => December 16, 1989 12:00 AM

// Make a difference in years
const difference = new Daty().diff(revolutionDate, "years");

console.log(`Right now there are ${difference} years since the Romanian revolution, 1989.`);
// => Right now there are 26 years since the Romanian revolution, 1989.

:question: Get Help

There are few ways to get help:

Please post questions on Stack Overflow. You can open issues with questions, as long you add a link to your Stack Overflow question.
For bug reports and feature requests, open issues. :bug:
For direct and quick help, you can use Codementor. :rocket:

:memo: Documentation

`format(s)`

Formats the date by specifying the format.

Params

String s: The date format using the formatoid supported fields or the presets:
L : M/D/YYYY
LL: MMMM D, YYYY
LLL: MMMM D, YYYY hh:mm A
LLLL: dddd, MMMM D, YYYY h:m A

If not specified, the date object will be stringified using the native toString() method.

Return

String The formated date.

`fromNow()`

Returns the "from now" value which is human readable.

Return

String The human readable "from now" value.

`add(count, what)`

Adds a specified number of units to the date.

Params

String count: The number of units to subtract.
String what: One of the units supported by add-subtract-date.

Return

Daty The Daty instance.

`subtract(count, what)`

Subtracts a specified number of units to the date.

Params

String count: The number of units to subtract.
String what: One of the units supported by add-subtract-date.

Return

Daty The Daty instance.

`clone()`

Clones the Daty instance.

Return

Daty A new Daty instance that is cloned from the first one.

`diff(d, units)`

Makes the difference between the current instance and a specified Daty instance.

Params

Daty|Date d: The date object.
String units: One of the units supported by diff-dates

Return

Number The difference result (in units).

`isEqual(d)`

Checks if the date instance is equal to another date object.

Params

Daty|Date d: The date object.

Return

Boolean true if they are equal, false otherwise.

`isBefore(d)`

Checks if the date instance is before to another date object.

Params

Daty|Date d: The date object.

Return

Boolean true if the date object is before the specified date or false otherwise.

`isAfter(d)`

Checks if the date instance is after another date object.

Params

Daty|Date d: The date object.

Return

Boolean true if the date object is after the specified date or false otherwise.

`isAfter()`

isValid Checks if the date instance is valid.

Return

Boolean true if the date object is valid, false otherwise.

`utc()`

Useful to format the date in UTC.

Return

Daty A new Daty instance which will be formatted in UTC output.

:yum: How to contribute

Have an idea? Found a bug? See how to contribute.

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