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JavaScript typedArray.toString() with Examples

JavaScript typedArray.entries() with Examples

Last Updated : 22 Dec, 2022

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The Javascript typedArray.entries() is an inbuilt function in JavaScript that gives a new array iterator object containing the key and value pairs of the given typedArray object.

Syntax:

typedArray.entries()

Parameter: It does not accept any parameters.

Return value It returns a new array iterator object containing the key and value pairs of the given typedArray object.

JavaScript examples to show the working of this function:

Example 1: In this example, we will use the typedArray.entries() function to return the key and value pairs of the object.

javascript

   <script> 
    // Creating a typedArray Uint8Array() with some elements 
    const uint8 = new Uint8Array([ 5, 10, 15, 20, 25, 30 ]); 
      
    // Calling entries() function 
    A = uint8.entries(); 
      
    // Shifting array iterator to next element one by one 
    // Iterator assigned to 10 
    A.next(); 
      
    // Iterator assigned to 15 
    A.next(); 
      
    console.log(A.next().value); 
</script>
 
  

Output: Here 2 is the index of element 15.

2, 15

Example 2: Here output is undefined because iterator exceeds the upper bound.

javascript

   <script> 
    // Creating a typedArray Uint8Array() with some elements 
    const uint8 = new Uint8Array([ 5, 10, 15, 20, 25 ]); 
      
    // Calling entries() function 
    A = uint8.entries(); 
      
    // Shifting array iterator to next element one by one 
    // Iterator assigned to 10 
    A.next(); 
      
    // Iterator assigned to 15 
    A.next(); 
      
    // Iterator assigned to 20 
    A.next(); 
      
    // Iterator assigned to 25 
    A.next(); 
      
    // Iterator went out of index 
    A.next(); 
    console.log(A.next().value); 
</script>
 
  

Output:

undefined

JavaScript typedArray.toString() with Examples

S

ShivamKD

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Article Tags :

JavaScript
Web Technologies
javascript-functions
javascript-typedArray

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