JSFiddle - React, Tailwind, and code Playground

JavaScript

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

alert(arr.toString());

var x = 2;
var y = 3;

var found = false;

for(var k = 0; k < arr.length; k++){
    if(arr[k][0] == x && arr[k][1] == y){
        found = true;
    }
}

if(found){
    alert('Found ['+x+','+y+'] in the array');
}else{
    alert('Could not find ['+x+','+y+'] in the array');
}