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Created October 23, 2015 23:02
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JS Bin // source http://jsbin.com/hobeji
Raw
index.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>JS Bin</title>
</head>
<body>
<script id="jsbin-javascript">
"use strict";
function Observable(forEach) {
this._forEach = forEach;
}
var noop = function noop() {};
Observable.prototype.forEach = function (observerOrOnNext, onError, onCompleted) {
if (typeof observerOrOnNext === "function") {
return this._forEach({
onNext: observerOrOnNext,
onError: onError || noop,
onCompleted: onCompleted || noop
});
} else {
return this._forEach(observerOrOnNext);
}
};
Observable.of = function () {
debugger;
var args = Array.prototype.slice.call(arguments);
return new Observable(function forEach(observer) {
var unsubscribed = false;
var handle = setTimeout(function () {
for (var counter = 0; counter < args.length && !unsubscribed; counter++) {
observer.onNext(args[counter]);
}
if (!unsubscribed) {
observer.onCompleted();
}
});
return {
dispose: function dispose() {
clearTimeout(handle);
unsubscribed = true;
}
};
});
};
Observable.prototype.map = function (projectionFunction) {
var self = this;
return new Observable(function forEach(observer) {
return self.forEach(function onNext(item) {
observer.onNext(projectionFunction(item));
}, function onError(error) {
observer.onError(error);
}, function onCompleted() {
observer.onCompleted();
});
});
};
Observable.prototype.filter = function (predicateFunction) {
var self = this;
return new Observable(function forEach(observer) {
return self.forEach(function onNext(item) {
if (predicateFunction(item)) {
observer.onNext(item);
}
}, function onError(error) {
observer.onError(error);
}, function onCompleted() {
observer.onCompleted();
});
});
};
var subscription = Observable.of(1, 2, 3).map(function (x) {
return x + 1;
}).filter(function (x) {
return x > 2;
}).forEach(function (x) {
console.log(x);
});
</script>
<script id="jsbin-source-javascript" type="text/javascript">function Observable(forEach) {
this._forEach = forEach;
}
var noop = function() { };
Observable.prototype.forEach = function(
observerOrOnNext,
onError,
onCompleted) {
if (typeof observerOrOnNext === "function") {
return this._forEach({
onNext: observerOrOnNext,
onError: onError || noop,
onCompleted: onCompleted || noop
});
}
else {
return this._forEach(observerOrOnNext);
}
};
Observable.of = function() {
debugger;
var args = Array.prototype.slice.call(arguments);
return new Observable(function forEach(observer) {
var unsubscribed = false;
var handle = setTimeout(function() {
for(var counter = 0; counter < args.length && !unsubscribed; counter++) {
observer.onNext(args[counter]);
}
if (!unsubscribed) {
observer.onCompleted();
}
});
return {
dispose: function() {
clearTimeout(handle);
unsubscribed = true;
}
};
});
};
Observable.prototype.map = function(projectionFunction) {
var self = this;
return new Observable(function forEach(observer){
return self.forEach(
function onNext(item) {
observer.onNext(projectionFunction(item));
},
function onError(error) {
observer.onError(error);
},
function onCompleted() {
observer.onCompleted();
});
});
};
Observable.prototype.filter = function(predicateFunction) {
var self = this;
return new Observable(function forEach(observer){
return self.forEach(
function onNext(item) {
if (predicateFunction(item)) {
observer.onNext(item);
}
},
function onError(error) {
observer.onError(error);
},
function onCompleted() {
observer.onCompleted();
});
});
};
var subscription =
Observable.
of(1,2,3).
map(x => x + 1).
filter(x => x > 2).
forEach(x => {
console.log(x);
});</script></body>
</html>
Raw
jsbin.hobeji.js
"use strict";
function Observable(forEach) {
this._forEach = forEach;
}
var noop = function noop() {};
Observable.prototype.forEach = function (observerOrOnNext, onError, onCompleted) {
if (typeof observerOrOnNext === "function") {
return this._forEach({
onNext: observerOrOnNext,
onError: onError || noop,
onCompleted: onCompleted || noop
});
} else {
return this._forEach(observerOrOnNext);
}
};
Observable.of = function () {
debugger;
var args = Array.prototype.slice.call(arguments);
return new Observable(function forEach(observer) {
var unsubscribed = false;
var handle = setTimeout(function () {
for (var counter = 0; counter < args.length && !unsubscribed; counter++) {
observer.onNext(args[counter]);
}
if (!unsubscribed) {
observer.onCompleted();
}
});
return {
dispose: function dispose() {
clearTimeout(handle);
unsubscribed = true;
}
};
});
};
Observable.prototype.map = function (projectionFunction) {
var self = this;
return new Observable(function forEach(observer) {
return self.forEach(function onNext(item) {
observer.onNext(projectionFunction(item));
}, function onError(error) {
observer.onError(error);
}, function onCompleted() {
observer.onCompleted();
});
});
};
Observable.prototype.filter = function (predicateFunction) {
var self = this;
return new Observable(function forEach(observer) {
return self.forEach(function onNext(item) {
if (predicateFunction(item)) {
observer.onNext(item);
}
}, function onError(error) {
observer.onError(error);
}, function onCompleted() {
observer.onCompleted();
});
});
};
var subscription = Observable.of(1, 2, 3).map(function (x) {
return x + 1;
}).filter(function (x) {
return x > 2;
}).forEach(function (x) {
console.log(x);
});
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