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AdvancedEvents.js
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128 lines (105 loc) · 2.63 KB
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// https://www.codewars.com/kata/52d4678038644497e900007c/solutions/javascript
function Event() {
let fs = [];
this.subscribe = function(){
console.log("subscribe:");
const args = Array.prototype.slice.call(arguments);
console.log(args);
args.forEach(f => {
if(f instanceof Function){
fs.push(f);
}
});
}
this.unsubscribe = function(){
console.log("unsubscribe:");
const args = Array.prototype.slice.call(arguments);
console.log(args);
args.reverse().forEach(f =>{
const i = fs.lastIndexOf(f);
if (i !== -1) {
fs.splice(i, 1);
}
});
}
this.emit = function(){
console.log("emit");
const t = [].concat(fs);
t.forEach(f => {
f.apply(this,arguments);
});
}
}
function f() {
f.calls = (f.calls || 0) + 1;
f.args = Array.prototype.slice.call(arguments);
console.log(` f.args: ${Array.prototype.slice.call(arguments)}`);
console.log(` f.args: ${f.args}`);
}
function f1(){
console.log("f1");
console.log(arguments);
}
function f2(){
console.log("f2");
console.log(arguments);
}
function f3(){
console.log("f3");
console.log(arguments);
}
function f4(){
console.log("f4");
console.log(arguments);
}
// const event = new Event();
// event.subscribe(f);
// event.show();
// event.emit(1, 2, 3, "abc");
// event.emit(2);
// console.log(`event.f.calls: ${event.f.calls}`);
// event.unsubscribe(f);
// event.emit(1, 2, 3, "abc");
// console.log(`event.f.calls: ${event.f.calls}`);
// f2("abc");
// console.log([1,2,3]);
// event.subscribe(f);
// event.emit(1, 2, 3, "abc");
// console.log(fs);
// event.subscribe(f1,f2,f3,f4);
// event.emit();
// event.test(1,2,3);
function Construct(){
this.f1 = () => {
console.log("f1");
const args = Array.prototype.slice.call(arguments);
console.log(args);
}
this.f2 = function(){
console.log("f2");
const args = Array.prototype.slice.call(arguments);
console.log(args);
}
}
var o = new Construct();
// o.f1(1,2,3);
// o.f2(1,2,3);
function fFactory(e,name){
function f() {
console.log(name);
const args = Array.prototype.slice.call(arguments);
console.log(args);
e.subscribe(fFactory(e,"second"));
}
return f;
}
var e = new Event();
// e.subscribe(function () {
// console.log('first');
// e.subscribe(function() {console.log('second'); });
// });
// e.emit();
// e.emit();
e.subscribe(fFactory(e,"first"));
e.emit(1,2);
e.emit(3,4,5);