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getTimestamp
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getTimestamp<span class="signature">()</span> &rarr; <span class="type-signature returnType">Number</span>
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<a href="https://github.com/CesiumGS/cesium/blob/1.68/Source/Core/getTimestamp.js#L12">Core/getTimestamp.js 12</a>
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Gets a timestamp that can be used in measuring the time between events. Timestamps
are expressed in milliseconds, but it is not specified what the milliseconds are
measured from. This function uses performance.now() if it is available, or Date.now()
otherwise.
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<h5>Returns:</h5>
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The timestamp in milliseconds since some unspecified reference time.
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