debounce

How to Run Function Once On Load (then by Observer) in Polymer

由 混江龙づ霸主 提交于 2019-12-11 04:57:41
问题 I am trying to run getResponse once when this web component loads, and then each time the procedure property changes. However, when trying to run this debounce function, it is invoked 4 times and getResponse runs after a delay, but 4 times instead of 1. static get properties() { return { procedure: { type: String, observer: 'getResponse' }, timeout: { type: Number, value: null } } } ready() { super.ready(); this.debounce(); } debounce() { console.log('debounce'); this.procedure =

Getting the event object with Underscore debounce[React]

由 旧时模样 提交于 2019-12-11 03:36:23
问题 I am trying to use debounce on an action I have managed to do that however I want to pass e through as a parameter but it is not working. Is there any way I could do this? constructor(props, context) { super(props, context); this.testing = _.debounce(this.testing.bind(this), 2000); } @action testing(e) { alert("debounced!!"); //use e.target ... } If I take away e it will get into the function otherwise not. What should I do to resolve this? 回答1: You can make use of event.persist() to pass on

RxJava operator Debounce is not working

由 [亡魂溺海] 提交于 2019-12-10 17:54:17
问题 I want to implement place autocomplete in Android application, and for this I'm using Retrofit and RxJava. I want to make response every 2 seconds after user type something. I'm trying to use debounce operator for this, but it's not working. It's giving me the result immediately without any pause. mAutocompleteSearchApi.get(input, "(cities)", API_KEY) .debounce(2, TimeUnit.SECONDS) .subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.mainThread()) .flatMap(prediction -> Observable

How can I debounce using async/await?

由 天涯浪子 提交于 2019-12-08 17:09:54
问题 I have an input box. After the user has stopped typing, I want to perform an HTTP request and await the results. Here's a jsbin Since network requests aren't allowed on jsbin, I've used setTimeout() instead. var log = console.log.bind(console) var delayedResults = new Promise(function(resolve) { setTimeout(function(){ resolve('Wooo I am the result!') }, 3000); }); document.querySelector('input').addEventListener('input', _.debounce(async function(){ log('Doing search') var result = await

How to use debounce on async function? [duplicate]

由 笑着哭i 提交于 2019-12-08 05:49:03
问题 This question already has answers here : Write async function with Lodash in a Vuejs component (2 answers) Closed last year . How can I use debounce on an async function? I have a method within my vue -app which reveives data from an API which calls the API continuosly which I want to avoid. Here is my method: methods: { async getAlbums () { const response = await AlbumService.fetchAlbums() this.albums = response.data.albums } } I've installed lodash previously so how can I achieve that? 回答1:

Blazor Textfield Oninput User Typing Delay

由 家住魔仙堡 提交于 2019-12-07 03:16:45
问题 How can I add a delay to an event (OnInput) in Blazor ? For example, if a user is typing in the text field and you want to wait until the user has finished typing. Blazor.Templates::3.0.0-preview8.19405.7 Code: @page "/" <input type="text" @bind="Data" @oninput="OnInputHandler"/> <p>@Data</p> @code { public string Data { get; set; } public void OnInputHandler(UIChangeEventArgs e) { Data = e.Value.ToString(); } } 回答1: Solution: There is no single solution to your question. The following code

Jest unit test for a debounce function

由 你说的曾经没有我的故事 提交于 2019-12-06 01:39:18
问题 I am trying to write a unit test for debounce function. I'm having a hard time thinking about it. This is the code: function debouncer(func, wait, immediate) { let timeout; return (...args) => { clearTimeout(timeout); timeout = setTimeout(() => { timeout = null; if (!immediate) func.apply(this, args); }, wait); if (immediate && !timeout) func.apply(this, args); }; } How should I start? 回答1: You will probably want to check the logic in your debouncer function: timeout will always be set by

Blazor Textfield Oninput User Typing Delay

由 眉间皱痕 提交于 2019-12-05 08:14:17
How can I add a delay to an event (OnInput) in Blazor ? For example, if a user is typing in the text field and you want to wait until the user has finished typing. Blazor.Templates::3.0.0-preview8.19405.7 Code: @page "/" <input type="text" @bind="Data" @oninput="OnInputHandler"/> <p>@Data</p> @code { public string Data { get; set; } public void OnInputHandler(UIChangeEventArgs e) { Data = e.Value.ToString(); } } Solution: There is no single solution to your question. The following code is just one approach. Take a look and adapt it to your requirements. The code resets a timer on each keyup ,

Jest unit test for a debounce function

由 浪尽此生 提交于 2019-12-04 10:55:47
I am trying to write a unit test for debounce function. I'm having a hard time thinking about it. This is the code: function debouncer(func, wait, immediate) { let timeout; return (...args) => { clearTimeout(timeout); timeout = setTimeout(() => { timeout = null; if (!immediate) func.apply(this, args); }, wait); if (immediate && !timeout) func.apply(this, args); }; } How should I start? You will probably want to check the logic in your debouncer function: timeout will always be set by that last if() statement this will always be undefined since arrow functions use "the this value of the

Immediate debounce in Rx

由 偶尔善良 提交于 2019-12-03 09:47:55
问题 I am looking an operator to debounce a series of event, let us say user's click. The input and output should be like this: interval : -> <- -> <- in : 1--2--3-------4--5--5--6-7-8-------- out : 1-------------4--------------------- The idea is like underscore's debounce with immediate option on http://underscorejs.org/#debounce. The operator can be presented/implemented in any language that supports Reactive Extensions Edit: Clarify the interval, let say 5 seconds (5 spaces between two arrows)
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