_.isNative(value) source npm package Checks if value is a pristine native function.Note: This method can't reliably detect native functions in the presence of the core-js package because core-js circumvents this kind of detection. Despite multiple requests, the core-js maintainer has made it clear: any attempt to fix the detection will be obstructed. As a result, we're left with little choice but to throw an error. Unfortunately, this also affects packages, like babel-polyfill, which rely on

_.isNaN(value) source npm package Checks if value is NaN.Note: This method is based on Number.isNaN and is not the same as global isNaN which returns true for undefined and other non-number values. Since 0.1.0 Arguments value (*): The value to check. Returns (boolean): Returns true if value is NaN, else false. Example _.isNaN(NaN); // => true   _.isNaN(new Number(NaN)); // => true   isNaN(undefined); // => true   _.isNaN(undefined); // => false

_.isMatchWith(object, source, [customizer]) source npm package This method is like _.isMatch except that it accepts customizer which is invoked to compare values. If customizer returns undefined, comparisons are handled by the method instead. The customizer is invoked with five arguments: (objValue, srcValue, index|key, object, source). Since 4.0.0 Arguments object (Object): The object to inspect. source (Object): The object of property values to match. [customizer] (Function): The functio

_.isMatch(object, source) source npm package Performs a partial deep comparison between object and source to determine if object contains equivalent property values.Note: This method is equivalent to _.matches when source is partially applied.Partial comparisons will match empty array and empty object source values against any array or object value, respectively. See _.isEqual for a list of supported value comparisons. Since 3.0.0 Arguments object (Object): The object to inspect. source (Ob

_.isMap(value) source npm package Checks if value is classified as a Map object. Since 4.3.0 Arguments value (*): The value to check. Returns (boolean): Returns true if value is a map, else false. Example _.isMap(new Map); // => true   _.isMap(new WeakMap); // => false

_.isLength(value) source npm package Checks if value is a valid array-like length.Note: This method is loosely based on ToLength. Since 4.0.0 Arguments value (*): The value to check. Returns (boolean): Returns true if value is a valid length, else false. Example _.isLength(3); // => true   _.isLength(Number.MIN_VALUE); // => false   _.isLength(Infinity); // => false   _.isLength('3'); // => false

_.isInteger(value) source npm package Checks if value is an integer.Note: This method is based on Number.isInteger. Since 4.0.0 Arguments value (*): The value to check. Returns (boolean): Returns true if value is an integer, else false. Example _.isInteger(3); // => true   _.isInteger(Number.MIN_VALUE); // => false   _.isInteger(Infinity); // => false   _.isInteger('3'); // => false

_.isFunction(value) source npm package Checks if value is classified as a Function object. Since 0.1.0 Arguments value (*): The value to check. Returns (boolean): Returns true if value is a function, else false. Example _.isFunction(_); // => true   _.isFunction(/abc/); // => false

_.isFinite(value) source npm package Checks if value is a finite primitive number.Note: This method is based on Number.isFinite. Since 0.1.0 Arguments value (*): The value to check. Returns (boolean): Returns true if value is a finite number, else false. Example _.isFinite(3); // => true   _.isFinite(Number.MIN_VALUE); // => true   _.isFinite(Infinity); // => false   _.isFinite('3'); // => false

_.isError(value) source npm package Checks if value is an Error, EvalError, RangeError, ReferenceError, SyntaxError, TypeError, or URIError object. Since 3.0.0 Arguments value (*): The value to check. Returns (boolean): Returns true if value is an error object, else false. Example _.isError(new Error); // => true   _.isError(Error); // => false