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/** |
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* Utility, generates random number. |
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*/ |
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function randNumber() { |
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return Math.ceil(Math.random() * 10); |
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} |
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/** |
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* Utility, generates random number between 1 and 3. |
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*/ |
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function diceWithMaxThee() { |
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return Math.floor(Math.random() * 3) + 1; |
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} |
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function $isUp(x1, x2, y1, y2) { |
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return x1 > x2 && y1 > y2; |
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} |
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function $isDown(x1, x2, y1, y2) { |
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return x1 < x2 && y1 < y2; |
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} |
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function $isZero(x1, x2, y1, y2) { |
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return x1 < x2 || y1 < y2; |
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} |
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function testCallFuncsOutside({ isUp, isDown, x1, x2, y1, y2 }) { |
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let isQualified; |
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if (isUp) { |
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isQualified = $isUp(x1, x2, y1, y2); |
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} else if (isDown) { |
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isQualified = $isDown(x1, x2, y1, y2); |
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} else { |
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isQualified = $isZero(x1, x2, y1, y2); |
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} |
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return isQualified; |
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} |
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function testCallFuncsInside({ isUp, isDown, x1, x2, y1, y2 }) { |
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function _isUp(x1, x2, y1, y2) { |
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return x1 > x2 && y1 > y2; |
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} |
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function _isDown(x1, x2, y1, y2) { |
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return x1 < x2 && y1 < y2; |
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} |
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function _isZero(x1, x2, y1, y2) { |
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return x1 < x2 || y1 < y2; |
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} |
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let isQualified; |
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if (isUp) { |
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isQualified = _isUp(x1, x2, y1, y2); |
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} else if (isDown) { |
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isQualified = _isDown(x1, x2, y1, y2); |
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} else { |
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isQualified = _isZero(x1, x2, y1, y2); |
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} |
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return isQualified; |
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} |
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function testWithoutFuncs({ isUp, isDown, x1, x2, y1, y2 }) { |
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let isQualified; |
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if (isUp) { |
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isQualified = x1 > x2 && y1 > y2; |
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} else if (isDown) { |
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isQualified = x1 < x2 && y1 < y2; |
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} else { |
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isQualified = x1 < x2 || y1 < y2; |
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} |
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return isQualified; |
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} |
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let isUp; |
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let isDown; |
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let x1; |
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let x2; |
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let y1; |
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let y2; |
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function testCallFuncsInsideWithGlobalParam() { |
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function _isUp(x1, x2, y1, y2) { |
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return x1 > x2 && y1 > y2; |
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} |
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function _isDown(x1, x2, y1, y2) { |
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return x1 < x2 && y1 < y2; |
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} |
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function _isZero(x1, x2, y1, y2) { |
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return x1 < x2 || y1 < y2; |
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} |
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let isQualified; |
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if (isUp) { |
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isQualified = _isUp(x1, x2, y1, y2); |
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} else if (isDown) { |
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isQualified = _isDown(x1, x2, y1, y2); |
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} else { |
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isQualified = _isZero(x1, x2, y1, y2); |
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} |
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return isQualified; |
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} |
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const MAX_LOOP = 10000000; |
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function runTest() { |
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const generatedParams = []; |
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for (let i = 0; i < MAX_LOOP; i++) { |
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const x1 = randNumber(); |
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const x2 = randNumber(); |
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const y1 = randNumber(); |
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const y2 = randNumber(); |
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const result = diceWithMaxThee(); |
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let isUp = false; |
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let isDown = false; |
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if (result === 1) { |
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isUp = true; |
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} else if (result === 2) { |
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isDown = true; |
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} |
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generatedParams.push({ isUp, isDown, x1, x2, y1, y2 }); |
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} |
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/** |
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* |
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*/ |
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const perf1 = performance.now(); |
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for (let i = 0; i < MAX_LOOP; i++) { |
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testWithoutFuncs(generatedParams[i]); |
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} |
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console.log(`test without functions took: ${performance.now() - perf1} ms`); |
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const perf2 = performance.now(); |
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for (let i = 0; i < MAX_LOOP; i++) { |
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testCallFuncsInside(generatedParams[i]); |
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} |
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console.log( |
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`test with calling functions inside took: ${performance.now() - perf2} ms` |
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); |
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const perf3 = performance.now(); |
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for (let i = 0; i < MAX_LOOP; i++) { |
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testCallFuncsOutside(generatedParams[i]); |
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} |
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console.log( |
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`test with calling functions outside took: ${performance.now() - perf3} ms` |
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); |
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const perf4 = performance.now(); |
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for (let i = 0; i < MAX_LOOP; i++) { |
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({ isUp, isDown, x1, x2, y1, y2 } = generatedParams[i]); |
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testCallFuncsInsideWithGlobalParam(); |
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} |
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console.log( |
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`test with calling functions inside depending on global parm took: ${performance.now() - |
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perf4} ms` |
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); |
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generatedParams.length = 0; |
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} |
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runTest(); |
