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// @lib: esnext,dom
// @strictNullChecks: true
{
const perf = window.performance
// Simplified
if (
perf &&
perf.measure &&
perf.clearMarks &&
perf.clearMeasures
) {
perf.measure("");
perf.clearMarks("")
perf.clearMeasures("")
}
// With ||
if (
perf &&
perf.mark &&
perf.measure || !!true
) {
perf.mark("");
}
};
// Original #49192
declare let inBrowser: boolean;
{
let mark;
let measure;
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)
}
}
};
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