Find a Fixed Point ( Value equal to index ) in a given array | JavaScript program to check fixed point in an array using linear search ; If no fixed point present then return - 1 ; Driver Code
function linearSearch ( arr , n ) { let i ; for ( i = 0 ; i < n ; i ++ ) { if ( arr [ i ] == i ) return i ; } return - 1 ; } let arr = [ - 10 , - 1 , 0 , 3 , 10 , 11 , 30 , 50 , 100 ] ; let n = arr . length ; document . write ( " " + linearSearch ( arr , n ) ) ;