Javascript 2d array indexOf

Question

I have a 2d array like this:

var arr = [[2,3],[5,8],[1,1],[0,9],[5,7]];

Each index stores an inner array containing the coordinates of some

Answer 1

Because this is a two dimensional Array, you will need a nested for loop.

var newArr = [1, 2],
    counter;


for ( var i = 0; i < arr.length; i++ ) {

    for ( var x = 0; x = arr[i].length; x++ ) {

        if ( arr[i][x] === newArr[x] {

             counter++ 
        }

        if (counter === 2) {
            alert('new coord!')
        }
    }
    //reset counter
    counter = 0;
}