setinterval

问题 I've looked around trying to understand how SetInterval but only found how to use it. I already know it's functionality, I'm just curious about how it's able to run something on a separate thread when JS doesn't support threading(at least that's what I read). I hope I formulated the question properly. Thanks. 回答1: setInterval does not run anything on a different thread. It schedules something to run at certain times provided the JS runtime is idle at that time . You can try out this behavior

问题 I have the following loop: for (let index = 0; index < 4; index++) { setInterval(function() { console.log(index) }, 1000); } How can I make it so that it console logs 0 the first second, 1 the second second, 2 the third second, 3 the fourth second, 0 the fifth second, and so on until the interval is cleared? 回答1: Here's a more-or-less-but-rather-more elegant solution using a generator function. Generator functions are useful here, as their execution can be paused by yield , and resumed by

问题 I have the following loop: for (let index = 0; index < 4; index++) { setInterval(function() { console.log(index) }, 1000); } How can I make it so that it console logs 0 the first second, 1 the second second, 2 the third second, 3 the fourth second, 0 the fifth second, and so on until the interval is cleared? 回答1: Here's a more-or-less-but-rather-more elegant solution using a generator function. Generator functions are useful here, as their execution can be paused by yield , and resumed by

问题 For an upcoming project with node.js I need to perform various housekeeping tasks at periodic times. Specifically some tasks every millisecond, others every 20 ms (50 times per second) and still others every second. So I thought about using setInterval(), with funny results: many function calls were being skipped. The benchmark I used is as follows: var counter = 0; var seconds = 0; var short = 1; setInterval(function() { counter ++; }, short); setInterval(function() { seconds ++; log(

问题 For an upcoming project with node.js I need to perform various housekeeping tasks at periodic times. Specifically some tasks every millisecond, others every 20 ms (50 times per second) and still others every second. So I thought about using setInterval(), with funny results: many function calls were being skipped. The benchmark I used is as follows: var counter = 0; var seconds = 0; var short = 1; setInterval(function() { counter ++; }, short); setInterval(function() { seconds ++; log(

来源： https://stackoverflow.com/questions/59139615/run-fetch-at-regular-intervals-using-react

来源： https://stackoverflow.com/questions/51665217/javascript-countdown-timer-with-on-key-press-to-reset-the-timer

来源： https://stackoverflow.com/questions/45862713/clearinterval-in-react

来源： https://stackoverflow.com/questions/45862713/clearinterval-in-react

来源： https://stackoverflow.com/questions/45862713/clearinterval-in-react