Predicate Packages

Async sentry that allows a clean breakout from long await when program's state changes.

Predicate Library

Checks whether a value is an arrow function

Checks whether a value is class

Check if function is an ES5 constructor or an ES6 class.

Predicate that returns true for "existy" values.

Predicate that returns true for "falsy" values.

Predicate that returns true for "truthy" values.

Predicate that returns true for "indexed" values.

find the index of the last element matching a predicate

A collection of predicate functions for checking variable types, written in TypeScript

mongoDB inspired JSON filters for JS

Bunch of help methods for e2e automation testing via Puppeteer

Partitions an array by a predicate

Predicate evaluation based logging

A package for filtering Node.js events. Your listeners only get executed when the specified predicate is satisfied.

Helps you deny the existence of specified truthy values (e.g. 'someString', aParticularObject)

Return the index of the first element of an array where the callback returns true. Returns -1 if none do.

Returns true if the predicate is satisfied for every element of the passed array; otherwise false.

This function takes an array and a predicate function. It returns an object with the property true and false, which are arrays of the elements that return true or false when passed to the predicate function.