The Javascript TypedArray indexof() method find the index of the element provided as the argument to the function.
Syntax:
Array.indexOf(value, start)
Parameters:
value: It represents the current element’s value.
start: It represents the index position to start the search. Default is 0. It is optional parameter.
Returns:
It returns index of the first element that satisfy the given test in the array. It will return -1, if no element satisfy the given condition.
Example 1:
<!DOCTYPE html> <html> <body> <script type="text/javascript"> function func() { var Jewels = ["DIAMOND","GOLD","PLATINUM","SILVER"]; document.write(Jewels.indexOf("SILVER")); } func(); </script> </body> </html> |
Output:
3 |
Example 2:
<!DOCTYPE html> <html> <body> <script type="text/javascript"> const testArray = new Uint8Array([45, 26, 23, 12, 67]); document.write(testArray.indexOf(26)); document.write("</br>"); document.write(testArray.indexOf(26, 3)); document.write("</br>"); document.write(testArray.indexOf(11)); </script> </body> </html> |
Output:
1 -1 -1 |