299 packages found
Does the environment have full property descriptor support? Handles IE 8's broken defineProperty/gOPD.
Does this environment have the ability to get the [[Prototype]] of an object on creation with `__proto__`?
Check if argv has a specific flag
A robust, ES3 compatible, "has own property" predicate.
Set nested properties on an object using dot notation.
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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 an object has a specified property.
Style elements relative to other elements in CSS
Set an array of unique values as the property of an object. Supports setting deeply nested properties using using object-paths/dot notation.
Check if a string has ANSI escape codes
A tiny and fast dynamic type checker/enforcer library
Check if a project is using Yarn
Detect native Symbol.toStringTag support.
Detect native Symbol support.
Basic cache object for storing key-value pairs.
Detect native Float64Array support.