JavaScript program to check if a given matrix is identity
let MAX = 100 ; function isIdentity ( mat , N ) { for ( let row = 0 ; row < N ; row ++ ) { for ( let col = 0 ; col < N ; col ++ ) { if ( row == col && mat [ row ] [ col ] != 1 ) return false ; else if ( row != col && mat [ row ] [ col ] != 0 ) return false ; } } return true ; }