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JavaScript TypedArray

As the name suggests TypedArray is an array for specific element types. There are mainly 9 types of Typed Array in Javascript.

 

TYPEDARRAYSIZEUSESTYPERANGE
Int8Array18-bit 2’s complement signed integer.byte-128 to 127
Unit8Array18-bit 2’s complement signed octet.octet0 to 255
Unit8ClampedArray18-bit unsigned integer (clamped) octet.octet0 to 255
Int16Array216-bit 2’s complement signed integer.short-32768 to 32767
Unit16Array216-bit unsigned integer.unsigned short0 to 65535

 

Int32Array432-bit 2’s complement signed integer.long-2147483648 to 2147483647
Uint32Array432-bit unsigned integerunsigned long0 to 4294967295
Float32Array432-bit IEEE floating point number unrestricted floatunrestricted float1.2×10-38 to 3.4×1038
Float64Array864-bit IEEE floating point number unrestricted doubleunrestricted double5.0×10-324 to 1.8×10308

TypedArray methods

 

copyWithin() Method:
Use: To copy a portion of an array to another location in the same array and returns the size without modification.

entries() Method:
Use: To get a new Array Iterator object that contains key-value pairs for each index in the array.

every() Method:
Use: To check whether all the elements of the array satisfy the given condition or not.

fill() Method:
Use: To fill all the elements of array from a start index to an end index with a static value.

filter() Method:
Use: To form a new array that fall under a given criteria from an existing array.

find() Method:
Use: To get the value of the first element in the array that satisfies the provided condition.

findIndex() Method:
Use: To provide the index of the element that complete the given test in the array.

forEach() Method:
Use: To call a specified function once for each element of the array.

includes() Method:
Use: To determine whether a particular element is present in the array or not.

indexof() Method:
Use: To find the index of the element provided as the argument to the function.

join() Method:
Use: To join all the elements of an Array into a string.

keys() Method:
Use: To get an Array Iterator object with the keys of an array.

lastIndexof() Method:
Use: To get the last position of a value, or it return -1 if the value is not found.

map() Method:
Use: To form a new array with the result of calling a function for every element.

reduce() Method:
Use: To reduce the elements of an array into a single value.

reduceRight() Method:
Use: To reduce the elements of an array (from right-to-left) into a single value.

reverse() Method:
Use: To reverse the array.

set() Method:
Use: To store values into the given array.

Slice() Method:
Use: To get the selected elements of the array on which is implemented.

some() Method:
Use: To examine the elements of the array that satisfies the given condition or not.

sort() Method:
Use: To sort the array and returns the updated array.

subarray() Method:
Use: To get a new array and it does not change the original array.

values() Method:
Use: To define the value of the contents in the array

toLocaleString() Method:
Use: To convert the element of the given array into a string.

toString() Method:
Use: To convert the element of the given array into a string. And these Strings are separated by separators such as a comma “,”.

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