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小墨
2025-01-09 20:29:41 +08:00
parent 04ecea043d
commit 48cdd06c2b
5053 changed files with 156164 additions and 135322 deletions
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30
leetcode-cn/problem (English)/间隔取消(English) [interval-cancellation].html
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@@ -1,5 +1,11 @@
<p>Given a function <code>fn</code>, an array of arguments&nbsp;<code>args</code>, and&nbsp;an interval time <code>t</code>, return a cancel function <code>cancelFn</code>.</p>
<p>After a delay of&nbsp;<code>cancelTimeMs</code>, the returned cancel function&nbsp;<code>cancelFn</code>&nbsp;will be invoked.</p>
<pre>
setTimeout(cancelFn, cancelTimeMs)
</pre>
<p>The function <code>fn</code> should be called with <code>args</code> immediately and then called again every&nbsp;<code>t</code> milliseconds&nbsp;until&nbsp;<code>cancelFn</code>&nbsp;is called at <code>cancelTimeMs</code> ms.</p>
<p>&nbsp;</p>
@@ -17,23 +23,9 @@
{&quot;time&quot;: 175, &quot;returned&quot;: 8}
]
<strong>Explanation:</strong>
const result = [];
const fn = (x) =&gt; x * 2;
const cancelTimeMs = 190;
const start = performance.now();
const log = (...argsArr) =&gt; {
const diff = Math.floor(performance.now() - start);
result.push({&quot;time&quot;: diff, &quot;returned&quot;: fn(...argsArr)});
}
const cancel = cancellable(log, [4], 35);
setTimeout(cancel, cancelTimeMs);
setTimeout(() =&gt; {
console.log(result); // Output
}, cancelTimeMs + 50)
const cancelFn = cancellable((x) =&gt; x * 2, [4], 35);
setTimeout(cancelFn, cancelTimeMs);
Every 35ms, fn(4) is called. Until t=190ms, then it is cancelled.
1st fn call is at 0ms. fn(4) returns 8.
@@ -59,7 +51,9 @@ Cancelled at 190ms
{&quot;time&quot;: 150, &quot;returned&quot;: 10}
]
<strong>Explanation:</strong>
const cancelTimeMs = 165;
const cancelTimeMs = 165;
const cancelFn = cancellable((x1, x2) =&gt; (x1 * x2), [2, 5], 30)
setTimeout(cancelFn, cancelTimeMs)
Every 30ms, fn(2, 5) is called. Until t=165ms, then it is cancelled.
1st fn call is at 0ms&nbsp;
@@ -84,6 +78,8 @@ Cancelled at 165ms
]
<strong>Explanation:</strong>
const cancelTimeMs = 180;
const cancelFn = cancellable((x1, x2, x3) =&gt; (x1 + x2 + x3), [5, 1, 3], 50)
setTimeout(cancelFn, cancelTimeMs)
Every 50ms, fn(5, 1, 3) is called. Until t=180ms, then it is cancelled.
1st fn call is at 0ms