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authorPriyansh <[email protected]>2020-12-22 17:49:59 +0530
committerPriyansh <[email protected]>2020-12-22 17:49:59 +0530
commite93da8b04da86773247aadb1cbb1912e4f4526b2 (patch)
treeeb4ef3203a92ed3dbd2252ddb1ea23bd2d670c98 /node_modules/lodash/_shortOut.js
parenta5743c293dcb435e4b159a4df791f8955a4110ec (diff)
downloadstyx-e93da8b04da86773247aadb1cbb1912e4f4526b2.tar.xz
styx-e93da8b04da86773247aadb1cbb1912e4f4526b2.zip
Rewriting Project
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+/** Used to detect hot functions by number of calls within a span of milliseconds. */
+var HOT_COUNT = 800,
+ HOT_SPAN = 16;
+
+/* Built-in method references for those with the same name as other `lodash` methods. */
+var nativeNow = Date.now;
+
+/**
+ * Creates a function that'll short out and invoke `identity` instead
+ * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN`
+ * milliseconds.
+ *
+ * @private
+ * @param {Function} func The function to restrict.
+ * @returns {Function} Returns the new shortable function.
+ */
+function shortOut(func) {
+ var count = 0,
+ lastCalled = 0;
+
+ return function() {
+ var stamp = nativeNow(),
+ remaining = HOT_SPAN - (stamp - lastCalled);
+
+ lastCalled = stamp;
+ if (remaining > 0) {
+ if (++count >= HOT_COUNT) {
+ return arguments[0];
+ }
+ } else {
+ count = 0;
+ }
+ return func.apply(undefined, arguments);
+ };
+}
+
+module.exports = shortOut;