548 packages found
Get the native type of a value.
Is this value a JS Boolean? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
ECMAScript “ToPrimitive” algorithm. Provides ES5 and ES2015 versions.
- primitive
- abstract
- ecmascript
- es5
- es6
- es2015
- toPrimitive
- coerce
- type
- object
- string
- number
- boolean
- symbol
- View more
Returns `true` if the string is upper case only.
Returns `true` if the string is lower case only
Returns true if a value exists, false if empty. Works with deeply nested values using object paths.
Returns true if any values exist, false if empty. Works for booleans, functions, numbers, strings, nulls, objects and arrays.
Test if a value is a boolean.
Isomorphic, functional type-checking for Javascript
Convert query strings to dates for express/connect applications.
boolean converts lots of things to boolean.
two functions: One that returns true, one that returns false
A parser and evaluator for boolean expressions written using the boon format
Returns `true` if the value is a primitive.
A simple set of functions that return a boolean.
Convert strings to boolean.
This module is small but easy to use. The purpose of this module is to check if a target value equals a source value, it can optionally also do none case sensitive comparing.
This module is small but easy to use. The purpose of this module is to check if a target value does not equals a source value, it can optionally also do none case sensitive comparing.
A library for checking and casting types.
Boolean Retrieval on Hierarchical Data