Index of Multidimensional Array

by wao20

JavaScript

// Sample Data
var k = 0;
var array=[];
for(var i=0;i<10;i++)
{
    array[i] = [];
    for(var j=0;j<100;j++)
    {
        k = k +1;
        array[i].push(k);
    }
}
// End Sample Data


/**
 * Index of Multidimensional Array
 * @param arr {?Array} - the input array
 * @param k {object} - the value to search
 * @return {Array} 
 */
function getIndexOfK(arr, k){
    if (!arr){
        return [];
    }
    
    for(var i=0; i<arr.length; i++){
        var index = arr[i].indexOf(k);
        if (index > -1){
            return [i, index];
        }
    }
    
    return [];
}

// return [1, 29] => ie array[1][29]
alert(getIndexOfK(array, 130));