var each = function (arr, fn) {
for (var i = 0; i < arr.length; i++) {
var val = arr[i];
if (fn.call(val, i, val, arr)) {
return false;
}
}
}
var arr = [1, 2, 3, 4];
each(arr, function (i, v) {
arr[i] = v * 2;
})
function MessageDialog(animation) {
this.animation = animation;
}
MessageDialog.prototype.show = function () {
this.animation.show();
}
function ErrorDialog(animation) {
this.animation = animation;
}
ErrorDialog.prototype.show = function () {
this.animation.show();
}
function LinerAnimation() {
}
LinerAnimation.prototype.show = function () {
console.log("it is liner");
}
function EaseAnimation() {
}
EaseAnimation.prototype.show = function () {
console.log("it is ease");
}
var message = new MessageDialog(new LinerAnimation()); message.show(); var error = new ErrorDialog(new EaseAnimation()); error.show();
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