463 packages found

    Description

    Is this value a JS Boolean? This module works cross-realm/iframe, and despite ES6 @@toStringTag.

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    published 1.1.04 months ago
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    Get the native type of a value.

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    published 6.0.3a year ago
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    Returns `true` if the string is upper case only.

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    published 2.0.25 months ago
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    Returns `true` if the string is lower case only

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    published 2.0.25 months ago
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    ECMAScript “ToPrimitive” algorithm. Provides ES5 and ES2015 versions.

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    published 1.2.1a year ago
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    Returns true if a value exists, false if empty. Works with deeply nested values using object paths.

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    published 2.0.23 years ago
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    Returns true if any values exist, false if empty. Works for booleans, functions, numbers, strings, nulls, objects and arrays.

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    published 2.0.13 years ago
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    Isomorphic, functional type-checking for Javascript

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    published 6.0.1a year ago
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    Description

    boolean converts lots of things to boolean.

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    published 3.0.325 days ago
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    React hooks to create stateful API's for reusable object patterns

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    published 1.1.214 days ago
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    Middleware for describing and validating your REST API routes using JSON schemas.

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    published 3.8.26 months ago
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    React hook providing functions for boolean state handling

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    published 1.0.22 months ago
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    Description

    Wrap and validate optional values

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    published 13.0.0a year ago
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    Javascript number, string, boolean, object validator

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    published 2.0.27 months ago
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    Description

    Utilities to get and check variable types (isString, isPlainObject, isRegExp, etc)

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    published 7.17.06 months ago
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    Description

    Wait for a condition to be true

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    published 4.0.013 days ago
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    Description

    two functions: One that returns true, one that returns false

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    published 1.0.07 years ago
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    Description

    A parser and evaluator for boolean expression written using the boon format

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    published 2.0.3a month ago
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    Description

    Convert query strings to dates for express/connect applications.

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    published 2.0.03 years ago
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    Description

    Returns `true` if the value is a primitive.

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    published 3.0.13 years ago
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