Evaluate Packages

Evaluates conditional and other expressions within serverless.yml

Allows Nightmare to execute delayed returns via a callback mechanism without using yeild

Library for evaluting piecewise polynomials

Calculate a postfix (Reverse Polish Notation) expression.

Throws a TypeError with a generated error message with ANSI-colors for easier console output readability.

Throws TypeError if 'value' is not a constructor.

Perform easy type-checks with a simple type assertion.

Returns whether the passed value is an arguments-object

Returns whether 'value' is an Array.

Returns true if 'value' is a constructor

Returns true if the argument is a function; false otherwise.

Returns true of value 'v' is null.

Returns true if the argument is a string; false otherwise.

Check if a value is of the given type.

Check whether the provided value is undefined.

Determine whether an array is empty

Mathematical expression evaluator originally created by Matthew Crumley

Hali is a tiny NodeJS package to evaluate XPath expressions.

A boolean expression evaluator for JS

This is a modified version of https://github.com/silentmatt/expr-eval 这是基于Matthew Crumley的expr-eval修改而成。