iftype

Check types

Installation

1$ npm install iftype --save

Usage

1'use strict'
2
3const iftype = require('iftype')
4
5function CustomType(){
6}
7
8//----------------------------
9// Check if type is 'string'
10//----------------------------
11iftype(123).is('string') // => false
12iftype(function foo(){}).is('string') // => false
13iftype(new CustomType()).is('string') // => false
14iftype(["foo", "bar"]).is('string') // => false
15iftype("bar").is('string') // => true
16iftype(null).is('string') // => false
17iftype(undefined).is('string') // => false
18
19
20//----------------------------
21// Check if type is 'number'
22//----------------------------
23iftype(123).is('number') // => true
24iftype(function foo(){}).is('number') // => false
25iftype(new CustomType()).is('number') // => false
26iftype(["foo", "bar"]).is('number') // => false
27iftype("bar").is('number') // => false
28iftype(null).is('number') // => false
29iftype(undefined).is('number') // => false
30
31
32//----------------------------
33// Check if type is 'object'
34//----------------------------
35iftype(123).is('object') // => false
36iftype(function foo(){}).is('object') // => false
37iftype(new CustomType()).is('object') // => true
38iftype(["foo", "bar"]).is('object') // => true
39iftype("bar").is('object') // => false
40iftype(null).is('object') // => false
41iftype(undefined).is('object') // => false
42
43
44//----------------------------
45// Check if type is 'array'
46//----------------------------
47iftype(123).is('array') // => false
48iftype(function foo(){}).is('array') // => false
49iftype(new CustomType()).is('array') // => false
50iftype(["foo", "bar"]).is('array') // => true
51iftype("bar").is('array') // => false
52iftype(null).is('array') // => false
53iftype(undefined).is('array') // => false
54
55
56//----------------------------
57// Check if type is 'function'
58//----------------------------
59iftype(123).is('function') // => false
60iftype(function foo(){}).is('function') // => true
61iftype(new CustomType()).is('function') // => false
62iftype(["foo", "bar"]).is('function') // => false
63iftype("bar").is('function') // => false
64iftype(null).is('function') // => false
65iftype(undefined).is('function') // => false
66
67
68//----------------------------
69// Check if type is CustomType
70//----------------------------
71iftype(123).is(CustomType) // => false
72iftype(function foo(){}).is(CustomType) // => false
73iftype(new CustomType()).is(CustomType) // => true
74iftype(["foo", "bar"]).is(CustomType) // => false
75iftype("bar").is(CustomType) // => false
76iftype(null).is(CustomType) // => false
77iftype(undefined).is(CustomType) // => false
78
79
80

API

Signature	Description
iftype(val).is(type)	Check if type match.
iftype(val).isString()	Check if string.
iftype(val).isNumber()	Check if number.
iftype(val).isObject()	Check if object.
iftype(val).isArray()	Check if array.
iftype.is(type, val)	Check if type match.
iftype.isString(val)	Check if string.
iftype.isNumber(val)	Check if number.
iftype.isObject(val)	Check if object.
iftype.isArray(val)	Check if array.

License

This software is released under the MIT License.

Links