タイマーを使ってコストのかかる関数を遅延実行させる
function swap(items, firstIndex, secondIndex) {
var temp = items[firstIndex];
items[firstIndex] = items[secondIndex];
items[secondIndex] = temp;
}
function bubbleSort(array, onComplete) {
var pos = 0;
(function () {
var j;
for (j = array.length; j > pos; j--) {
if (array[j] < array[j - 1]) {
swap (array, j, j - 1);
}
}
pos++;
if (pos < array.length) {
setTimeout(arguments.callee, 500);
} else {
onComplete(array);
}
})();
}
var array = [3,1,4,2];
bubbleSort(array, function (v) { console.log(v)} );
function chunk(array, process, context) {
var items = array.concat();
setTimeout(function () {
var item = items.shift();
process.call(context, item);
if (items.length > 0) {
setTimeout(arguments.callee, 100);
}
}, 100);
}
var obj = { items : [] };
var items = [ 1,2,3 ];
chunk(items, function (value) {
this.items.push( value * 10);
}, obj);
console.log(obj.items);
