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@@ -0,0 +1,11 @@
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+// makeProfileTimer
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+function makeProfileTimer() {
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+ let first = performance.now();
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+ return function () {
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+ let second = performance.now();
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+ return second - first
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+ };
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+}
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+var timer = makeProfileTimer();
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+alert("Замеряем время работы этого alert");
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+alert(`${timer()} ms`);
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