The Javascript TypedArray index () method finds 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 means the index position to start the search. The default is 0. It is an optional parameter.
Returns:
It returns the index of the first element that satisfies the given test in the array. It will return -1 if no part satisfies 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>
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>