Results 181 - 200 of 296

WeakMap.prototype.clear()

The clear() method used to remove all elements from a WeakMap object, but is no longer part of ECMAScript and its implementations.
JavaScript Method Obsolete Prototype WeakMap

WeakMap.prototype.delete()

The delete() method removes the specified element from a WeakMap object.
ECMAScript6 JavaScript Method Prototype WeakMap

WeakMap.prototype.get()

The get() method returns a specified element from a WeakMap object.
ECMAScript6 JavaScript Method Prototype WeakMap

WeakMap.prototype.has()

The has() method returns a boolean indicating whether an element with the specified key exists in the WeakMap object or not.
ECMAScript6 JavaScript Method Prototype WeakMap

WeakMap.prototype.set()

The set() method adds a new element with a specified key and value to a WeakMap object.
ECMAScript6 JavaScript Method Prototype WeakMap

WeakSet.prototype.add()

The add() method appends a new object to the end of a WeakSet object.
ECMAScript6 JavaScript Method Prototype WeakSet

WeakSet.prototype.clear()

The clear() method used to remove all elements from a WeakSet object, but is no longer part of ECMAScript and its implementations.
JavaScript Method Obsolete Prototype WeakSet

WeakSet.prototype.delete()

The delete() method removes the specified element from a WeakSet object.
ECMAScript6 JavaScript Method Prototype WeakSet

WeakSet.prototype.has()

The has() method returns a boolean indicating whether an object exists in a WeakSet or not.
ECMAScript6 JavaScript Method Prototype WeakSet

Array.prototype[@@iterator]()

The initial value of the @@iterator property is the same function object as the initial value of the values() property.
Array ECMAScript6 Iterator JavaScript Method Prototype Reference

Array.prototype.copyWithin()

The copyWithin() method shallow copies part of an array to another location in the same array and returns it, without modifying its size.
Array ECMAScript6 JavaScript Method polyfill Prototype

Array.prototype.entries()

The entries() method returns a new Array Iterator object that contains the key/value pairs for each index in the array.
Array ECMAScript6 Iterator JavaScript Method Prototype

Array.prototype.every()

The every() method tests whether all elements in the array pass the test implemented by the provided function.
Array ECMAScript5 JavaScript Method polyfill Prototype

Array.prototype.fill()

The fill() method fills all the elements of an array from a start index to an end index with a static value.
Array ECMAScript6 JavaScript Method polyfill Prototype

Array.prototype.filter()

The filter() method creates a new array with all elements that pass the test implemented by the provided function.
Array ECMAScript5 JavaScript Method polyfill Prototype Reference

Array.prototype.find()

The find() method returns a value in the array, if an element in the array satisfies the provided testing function. Otherwise undefined is returned.
Array ECMAScript 2015 ECMAScript6 JavaScript Method polyfill Prototype

Array.prototype.findIndex()

The findIndex() method returns an index in the array, if an element in the array satisfies the provided testing function. Otherwise -1 is returned.
Array ECMAScript6 JavaScript Method polyfill Prototype

Array.prototype.forEach()

The forEach() method executes a provided function once per array element.
Array ECMAScript5 JavaScript Method Prototype Reference

Array.prototype.includes()

The includes() method determines whether an array includes a certain element, returning true or false as appropriate. 
Array JavaScript Method polyfill Prototype Reference

Array.prototype.indexOf()

The indexOf() method returns the first index at which a given element can be found in the array, or -1 if it is not present.
Array JavaScript Method polyfill Prototype Reference