typechecker
Utilities to get and check variable types (isString, isPlainObject, isRegExp, etc)
Utilities to get and check variable types (isString, isPlainObject, isRegExp, etc)
Better 'typeof'. Detects real type of the objects like 'Array()', 'new Number(1)', 'new Boolean(true)', etc.
Tests a value’s type against a string like 'positive integer' or 'non-empty map'.
Make plain json data(array and object) immutable
Immutable and predictive to update json data
Configuration as code helper for TypeScript.
Merge plain objects with customised rules.
Tools to use handle plain JS objects as immutable objects