@fav/type.is-valid-date

Checks whether a value is a valid date object or not.

"fav" is an abbreviation of "favorite" and also the acronym of "for all versions". This package is intended to support all Node.js versions and many browsers as possible. At least, this package supports Node.js >= v0.10 and major Web browsers: Chrome, Firefox, IE11, Edge, Vivaldi and Safari.

Install

To install from npm:

$ npm install --save @fav/type.is-valid-date

NOTE: npm < 2.7.0 does not support scoped package, but old version Node.js supports it. So when you use such older npm, you should download this package from github.com, and move it in node_modules/@fav/type.is-valid-date/ directory manually.

Usage

For Node.js:

var isValidDate = require('@fav/type.is-valid-date');
isValidDate(new Date(2017, 8, 30)); // => true
isValidDate(new Date(9999999999, 1, 1)); // => false

isValidDate.not(new Date(2017, 8, 30)); // => false
isValidDate.not(new Date(9999999999, 1, 1)); // => true

Or when installing fav-type.is-valid-date from github:

var isValidDate = require('fav-type.is-valid-date');
isValidDate(new Date(2017, 8, 30)); // => true
isValidDate.not(new Date(2017, 8, 30)); // => false

For Web browsers:

<script src="fav.type.is-valid-date.min.js"></script>
<script>
var isValidDate = fav.type.isValidDate;
isValidDate(new Date(2017, 8, 30)); // => true
isValidDate.not(new Date(2017, 8, 30)); // => false
</script>

API

isValidDate(value) : boolean

Checks if value is a valid date object.

Parameter:

Return:

True, if value is a valid date.

Type: boolean

isValidDate.not(value) : boolean

Checks if value is not a valid date object.

This function always returns a negative boolean of isValidDate(value).

Parameter:

Return:

True, if value is not a valid date.

Type: boolean

Checked

Node.js (4〜)

io.js (1〜3)

Node.js (〜0.12)

Web browsers

License

Copyright (C) 2017-2018 Takayuki Sato

This program is free software under MIT License. See the file LICENSE in this distribution for more details.