智能照明系统APP-本地串口
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LightingSystemApp-serial/.svn/pristine/76/760ef0f4a3de0941db52a115966...

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526 B

import { inBrowser } from './env'
export let mark
export let measure
if (process.env.NODE_ENV !== 'production') {
const perf = inBrowser && window.performance
/* istanbul ignore if */
if (
perf &&
perf.mark &&
perf.measure &&
perf.clearMarks &&
perf.clearMeasures
) {
mark = tag => perf.mark(tag)
measure = (name, startTag, endTag) => {
perf.measure(name, startTag, endTag)
perf.clearMarks(startTag)
perf.clearMarks(endTag)
// perf.clearMeasures(name)
}
}
}