is-number

Returns true if a number or string value is a finite number. Useful for regex matches, parsing, user input, etc.

v7.0.0 URL: https://unpkg.com/is-number@7.0.0/index.js

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cast check coerce coercion finite integer is isnan is-nan is-num is-number isnumber isfinite istype kind math nan num number numeric parseFloat parseInt test type typeof value

@stdlib/utils-constructor-name

Determine the name of a value's constructor.

v0.2.2 URL: https://unpkg.com/@stdlib/utils-constructor-name@0.2.2/lib/index.js

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stdlib stdutils stdutil utilities utility utils util type typeof class constructor ctor name instanceof is istype check

@stdlib/utils-type-of

Determine a value's type.

v0.2.2 URL: https://unpkg.com/@stdlib/utils-type-of@0.2.2/lib/index.js

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stdlib stdutils stdutil utilities utility utils util type typeof built-in is istype check

@stdlib/utils-native-class

Determine the specification defined classification of an object.

v0.2.2 URL: https://unpkg.com/@stdlib/utils-native-class@0.2.2/lib/index.js

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stdlib stdutils stdutil utilities utility utils util type typeof native class classification specification spec ecmascript ecma internal tostring object built-in builtin is istype check

jistype

yet another istype detect library using `Object.prototype.toStirng` to get type.

v0.1.0 URL: https://unpkg.com/jistype@0.1.0/index.js

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