var arrDim = 1000;

​

​

var clArr = new Array(arrDim);

for (var i = 0; i < arrDim; i++) {

    clArr[i] = new Uint8Array(arrDim);

}

​

clArr.getSlice = function(i) {

    return this[i];

}

clArr.setVal = function(i, j, val) {

    this[i][j] = val;

}

clArr.getVal = function(i, j) {

    return this[i][j];

}

​

​

var flArr = new Uint8Array(Math.pow(arrDim, 2));

​

flArr.getSlice = function(i) {

    var start = i*arrDim;

    return this.slice(start, start + arrDim);

}

flArr.setVal = function(i, j, val) {

    this[i*arrDim + j] = val;

}

flArr.getVal = function(i, j) {

    return this[i*arrDim + j];

}