JavaScript typedArray.keys() Method Last Updated : 10 Feb, 2023 Comments Improve Suggest changes Like Article Like Report The typedArray.keys() is an inbuilt function in JavaScript which is used to return a new array iterator containing the keys for each index of the elements of the given typedArray. Syntax: typedArray.keys() Parameter: This function does not accept anything as parameter. Return value: It returns a new array iterator object containing the keys for each index of the elements of the given typedArray. Example: JavaScript code to show the working of this function. javascript // Creating some typedArrays const A = new Uint8Array([1, 2, 3, 4, 5]); const B = new Uint8Array([5, 10, 15, 20]); const C = new Uint8Array([0, 2, 4, 6, ,8, 10]); const D = new Uint8Array([1, 3, 5, 7, 9]); // Calling keys() function a = A.keys() console.log(a.next().value); b = B.keys() b.next(); console.log(b.next().value); c = C.keys() c.next(); c.next(); console.log(c.next().value); d = D.keys() d.next(); d.next(); d.next(); console.log(d.next().value); Output: 0 1 2 3 Comment More infoAdvertise with us Next Article JavaScript typedArray.keys() Method K Kanchan_Ray Follow Improve Article Tags : Misc JavaScript Web Technologies javascript-typedArray JavaScript-Methods +1 More Practice Tags : Misc Similar Reads JavaScript typedArray.map() Method The typedArray.map() is an inbuilt function in JavaScript which is used to create a new typedArray with the result of a provided function on each element of the given typedArray. Syntax: typedArray.map(callback) Parameters: It accepts a parameter callback function which accept some parameter which a 1 min read JavaScript typedArray.of() Method The typedArray.of() is an inbuilt function in JavaScript which is used to construct a new typedArray with a variable number of parameters. Syntax: TypedArray.of(element0, element1, ......) Parameters: It accepts parameters of different elements whose typedArray is going to be created. Return value: 1 min read JavaScript typedArray.length() Method The typedArray.length is an inbuilt property in JavaScript which is used to return the length of the given typedArray. Syntax: typedArray.length Parameters: It does not accept any parameter because it is a property not a function. Return value: It returns the length of the given typedArray. Example 2 min read JavaScript TypedArray.of() Method The TypedArray.of() method is used to create a new array from a variable number of arguments that are passed to it. Syntax: TypedArray.of( el0, el1, el2, ...elN ) Parameters: This method accepts a variable number of elements, which are used to create the Int16Array array. TypedArray can contain any 2 min read JavaScript typedArray.set() Method The typedArray.set() is an inbuilt function in JavaScript which is used to stores a number of values in the given typedArray. typedArray.set(typedArray, offset) Parameters: It accept two parameters which are specified below- typedarray: It is the source array. offset: It is optional and it is into t 1 min read JavaScript typedArray.fill() Method The typedArray.fill() is an inbuilt function in JavaScript which is used to fill a value to typedArray from a start index to end index. Syntax: typedarray.fill(value, start, end) Parameters: It takes three parameters that are specified below- value: It is the value to fill with typed array.start: It 1 min read JavaScript typedArray.indexOf() Method The typedArray.indexOf() is an inbuilt function in JavaScript which is used to return the index of the element if found in the given typedArray otherwise it returns -1. Syntax: typedarray.indexOf(Element, Index); Parameters: It accepts two parameter which are specified below- Element: It is the elem 2 min read JavaScript Object keys() Method The Object.keys() method in JavaScript is used to retrieve an array of the enumerable property names of an object. It returns an array containing the keys of the object. Syntax:Object.keys(obj);Parameter:obj: It is the object whose enumerable properties are to be returned.Return Value:It returns an 3 min read JavaScript Map keys() Method The Map.keys() method is used to extract the keys from a given map object and return the iterator object of keys. The keys are returned in the order they were inserted.Syntax:Map.keys()Parameters:This method does not accept any parameters.Return Value:This returns the iterator object that contains k 3 min read JavaScript Array keys() Method The Javascript array.keys() method is used to return a new array iterator which contains the keys for each index in the given input array. Syntax:array.keys()Parameters: This method does not accept any parameters. Return Values: It returns a new array iterator. The below example illustrates the Arra 3 min read Like