The map() method creates a new array with the results of calling a provided function on every element in this array.

Array ECMAScript5 JavaScript Method polyfill Prototype

The reduceRight() method applies a function against an accumulator and each value of the array (from right-to-left) has to reduce it to a single value.

Array ECMAScript5 JavaScript Method polyfill Prototype

The some() method tests whether some element in the array passes the test implemented by the provided function.

Array ECMAScript5 JavaScript Method Prototype Reference

The values() method returns a new Array Iterator object that contains the values for each index in the array.

Array ECMAScript6 Iterator JavaScript Method Prototype

The next() method returns an object with two properties done and value. You can also provide a parameter to the next method to send a value to the generator.

ECMAScript6 Generator JavaScript Method Prototype Reference

The return() method returns the given value and finishes the generator.

ECMAScript6 Generator JavaScript Method Prototype Reference

The throw() method resumes the execution of a generator by throwing an error into it and returns an object with two properties done and value.

ECMAScript6 Generator JavaScript Method Prototype Reference

The GeneratorFunction constructor creates a new generator function object. In JavaScript every generator function is actually a GeneratorFunction object.

Constructor ECMAScript6 GeneratorFunction Iterator JavaScript Reference

The GeneratorFunction.prototype property represents the GeneratorFunction prototype object.

ECMAScript6 GeneratorFunction Iterator JavaScript Property Prototype Reference

The initial value of the @@iterator property is the same function object as the initial value of the entries property.

ECMAScript6 Iterator JavaScript Map Method Prototype Reference

The Map[@@toStringTag] property has an initial value of "Map".

ECMAScript6 JavaScript Map Property Prototype Reference

The entries() method returns a new Iterator object that contains the [key, value] pairs for each element in the Map object in insertion order.

ECMAScript6 Iterator JavaScript Map Method Prototype

The keys() method returns a new Iterator object that contains the keys for each element in the Map object in insertion order.

ECMAScript6 Iterator JavaScript Map Method Prototype

The values() method returns a new Iterator object that contains the values for each element in the Map object in insertion order.

ECMAScript6 Iterator JavaScript Map Method Prototype

The Object.assign() method is used to copy the values of all enumerable own properties from one or more source objects to a target object. It will return the target object.

ECMAScript6 JavaScript Method Object polyfill Reference

The Object.create() method creates a new object with the specified prototype object and properties.

ECMAScript5 JavaScript Method Object polyfill Reference

The Object.getOwnPropertyNames() method returns an array of all properties (enumerable or not) found directly upon a given object.

ECMAScript5 JavaScript JavaScript 1.8.5 Method Object Reference

The initial value of the @@iterator property is the same function object as the initial value of the values property.

ECMAScript6 Iterator JavaScript Method Prototype Reference set

The entries() method returns a new Iterator object that contains an array of [value, value] for each element in the Set object, in insertion order. For Set objects there is no key like in Map objects. However, to keep the API similar to the Map object, each entry has the same value for its key and value here, so that an array [value, value] is returned.

ECMAScript6 Iterator JavaScript Method Prototype set

The values() method returns a new Iterator object that contains the values for each element in the Set object in insertion order.

ECMAScript6 Iterator JavaScript Method Prototype set