flying-hero
96f6318101
新增: - backend/venv/ - Python 虚拟环境 - backend/start.sh - 启动脚本（使用虚拟环境） - backend/requirements.txt - 依赖列表 - .gitignore - 忽略虚拟环境和缓存文件 说明: - 每个项目使用独立虚拟环境 - 避免依赖冲突 - 启动脚本自动创建和激活虚拟环境
15 lines
607 B
JavaScript
15 lines
607 B
JavaScript
'use strict';
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// `Math.scale` method implementation
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// https://rwaldron.github.io/proposal-math-extensions/
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module.exports = function scale(x, inLow, inHigh, outLow, outHigh) {
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var nx = +x;
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var nInLow = +inLow;
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var nInHigh = +inHigh;
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var nOutLow = +outLow;
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var nOutHigh = +outHigh;
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// eslint-disable-next-line no-self-compare -- NaN check
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if (nx !== nx || nInLow !== nInLow || nInHigh !== nInHigh || nOutLow !== nOutLow || nOutHigh !== nOutHigh) return NaN;
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if (nx === Infinity || nx === -Infinity) return nx;
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return (nx - nInLow) * (nOutHigh - nOutLow) / (nInHigh - nInLow) + nOutLow;
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};
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