settimeout

问题 I set up timeout with jquery at scroll action. For example, after scroll wait 10 seconds and send ajax request, but how to cancel previous timeout if receive new action of scroll withing first timeout not processed? 回答1: Use clearTimeout: var timer; $(window).scroll(function(){ if ( timer ) clearTimeout(timer); timer = setTimeout(function(){ // Make your AJAX request here... }, 10000); }); 来源： https://stackoverflow.com/questions/10573021/jquery-scroll-with-timeout

问题 Context : New messages are added (e.g. every two seconds, using setInterval). Messages have status, either old or new. Newly added messages have a 'new' flag. After every 5 seconds, all 'new' messages are designated 'old'. (setTimeout) Problem : Timeout is not triggering until the end. New messages are added, but they remain 'new' until all messages are added. I suspect that after every update the timeout is being reset/cleared and because the updates are occurring faster than the timeout,

问题 var test = function(a, b) { return a + b; }; setTimeout(test(2, 3), 3000); it shows some type error 回答1: There are at least two ways to achieve this. The first one just fires the test function inside of a new anonymous function passed as callback to the setTimout . The second one uses .bind to partially apply the test function. var test = function(a, b) { console.log(a + b); return a + b; }; setTimeout(() => { test(2, 3); }, 3000); setTimeout(test.bind(null, 2, 3), 3000); And if you don't

问题 var test = function(a, b) { return a + b; }; setTimeout(test(2, 3), 3000); it shows some type error 回答1: There are at least two ways to achieve this. The first one just fires the test function inside of a new anonymous function passed as callback to the setTimout . The second one uses .bind to partially apply the test function. var test = function(a, b) { console.log(a + b); return a + b; }; setTimeout(() => { test(2, 3); }, 3000); setTimeout(test.bind(null, 2, 3), 3000); And if you don't

问题 I am making a simple memory card game. If you click on two cards in a row that are the same they stay open. If you click on two cards in a row that are not the same they both close in 1.5s. For that I use setTimeout(); However, if during that 1.5s user clicks on any other card, event listener function starts running again while setTimeout have not finished running for the first time. This crashes the game. How to prevent other code from running until setTimeout finishes running for the first

问题 I'm using Vue Js and I have a nested array like this: arrays: [ { name: 'Max', Info: [60, 75, 70, 85, 65], }, { name: 'Dave, Info: [70, 95, 60, 65, 83], }, ] I have a user profile box that displays name and info for each user. <div class="outer" v-for="(item, index) in arrays" :key="item.id" v-bind:id="item.name"> I would like to display info in template: <div class="box c" >Info<span v-for="info in item.Info">{{info}}</span></div> When I did this it showed the correct array for the correct

问题 I have this code and my question is why inside my answer function I get the initialState. How to set the state in a proper way to get the right one inside a callback of setTimeout function? const App = () => { const [state, setState] = useState({ name: "", password: "", }); useEffect(() => { setState({ ...state, password: "hello" }); setTimeout(answer, 1000); }, []); const answer = () => { console.log(state); // we get initial State }; return <div className="App"></div>; }; 回答1: The reason is

问题 My rust program is managing memory for a 2d html canvas context, and I'm trying to hit ~60fps. I can calculate the delta between each frame easily, and it turns out to be roughly ~5ms. I'm unclear on how to put my Rust webassembly program to sleep for the remaining 11ms. One option would be to have JavaScript call into Rust on every requestAnimationFrame and use that as the driver, but I'm curious to keep it all in Rust if possible. I'm effectively looking for the Rust equivalent of

问题 My rust program is managing memory for a 2d html canvas context, and I'm trying to hit ~60fps. I can calculate the delta between each frame easily, and it turns out to be roughly ~5ms. I'm unclear on how to put my Rust webassembly program to sleep for the remaining 11ms. One option would be to have JavaScript call into Rust on every requestAnimationFrame and use that as the driver, but I'm curious to keep it all in Rust if possible. I'm effectively looking for the Rust equivalent of

问题 My rust program is managing memory for a 2d html canvas context, and I'm trying to hit ~60fps. I can calculate the delta between each frame easily, and it turns out to be roughly ~5ms. I'm unclear on how to put my Rust webassembly program to sleep for the remaining 11ms. One option would be to have JavaScript call into Rust on every requestAnimationFrame and use that as the driver, but I'm curious to keep it all in Rust if possible. I'm effectively looking for the Rust equivalent of