27 lines
669 B
JavaScript
27 lines
669 B
JavaScript
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var now = require('./now');
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var root = require('./root');
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var performance = root.performance;
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var process = root.process;
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var loadTime;
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if (performance && performance.now) {
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exports = function() {
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return performance.now();
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};
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} else if (process && process.hrtime) {
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var getNanoSeconds = function() {
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var hr = process.hrtime();
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return hr[0] * 1e9 + hr[1];
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};
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loadTime = getNanoSeconds() - process.uptime() * 1e9;
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exports = function() {
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return (getNanoSeconds() - loadTime) / 1e6;
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};
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} else {
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loadTime = now();
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exports = function() {
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return now() - loadTime;
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};
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}
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module.exports = exports;
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