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knockoutjs replaced slow obj.__proto__ with Object.setPrototypeOf()

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djmaze 2020-10-28 20:19:38 +01:00
parent d49916731f
commit 5a0215987a
7 changed files with 100 additions and 157 deletions
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6
vendors/knockout/src/subscribables/subscribable.js vendored
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@ -27,7 +27,7 @@ ko.subscription.prototype.disposeWhenNodeIsRemoved = function (node) {
};
ko.subscribable = function () {
ko.utils.setPrototypeOfOrExtend(this, ko_subscribable_fn);
Object.setPrototypeOf(this, ko_subscribable_fn);
ko_subscribable_fn.init(this);
}
@ -187,9 +187,7 @@ ko.exportProperty(ko_subscribable_fn, 'getSubscriptionsCount', ko_subscribable_f
// For browsers that support proto assignment, we overwrite the prototype of each
// observable instance. Since observables are functions, we need Function.prototype
// to still be in the prototype chain.
if (ko.utils.canSetPrototype) {
ko.utils.setPrototypeOf(ko_subscribable_fn, Function.prototype);
}
Object.setPrototypeOf(ko_subscribable_fn, Function.prototype);
ko.subscribable['fn'] = ko_subscribable_fn;