Created
November 17, 2017 20:44
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debounceTime using setTimeout, rxjs and value matching
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| <!doctype html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"/> | |
| <title>Hej</title> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/rxjs/5.5.0/Rx.min.js"></script> | |
| </head> | |
| <body> | |
| <input id="input" type="text"/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/> | |
| <pre>Output 1: <span id="keystrokeOutput1"></span></pre> | |
| <pre>Output 2: <span id="keystrokeOutput2"></span></pre> | |
| <pre>Output 3: <span id="keystrokeOutput3"></span></pre> | |
| <script> | |
| (method1 = () => { | |
| const e = document.getElementById('keystrokeOutput1'); | |
| const i = document.getElementById('input'); | |
| let timeouter; | |
| i.addEventListener('keydown', () => { | |
| clearTimeout(timeouter); | |
| timeouter = window.setTimeout(() => { | |
| e.innerText = i.value; | |
| }, 400); | |
| }); | |
| })(); | |
| (method2 = () => { | |
| const e = document.getElementById('keystrokeOutput2'); | |
| const i = document.getElementById('input'); | |
| const i$ = Rx.Observable.fromEvent(i, 'keydown'); | |
| i$.debounceTime(400).subscribe(evt => e.innerText = i.value); | |
| })(); | |
| (method3 = () => { | |
| const clickManager = (() => { | |
| let clicks = 0; | |
| return { | |
| addClick: () => ++clicks, | |
| getClicks: () => clicks | |
| }; | |
| })(); | |
| const e = document.getElementById('keystrokeOutput3'); | |
| const i = document.getElementById('input'); | |
| let lastVal = ""; | |
| i.addEventListener('keydown', () => { | |
| let supposedClickCount = clickManager.addClick(); | |
| window.setTimeout(() => { | |
| if (lastVal == i.value.trim()) { | |
| console.log("Not searching due to no changes"); | |
| } | |
| else if (supposedClickCount == clickManager.getClicks()) { | |
| e.innerText = lastVal = i.value.trim(); | |
| console.log("Searching :D"); | |
| } | |
| else { | |
| console.log("Not searching due to mismatch", clickManager.getClicks(), "vs", supposedClickCount); | |
| } | |
| }, 400); | |
| }); | |
| })(); | |
| </script> | |
| </body> | |
| </html> |
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