The ProgressEvent.lengthComputable read-only property is a boolean flag indicating if the resource concerned by the ProgressEvent has a length that can be calculated. If not, the ProgressEvent.total property has no significant value.
The ProgressEvent.lengthComputable read-only property is a boolean flag indicating if the resource concerned by the ProgressEvent has a length that can be calculated. If not, the ProgressEvent.total property has no significant value.
A boolean.
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
lengthComputable |
1 | 12 | 3.5 | 10 | ≤12.1 | 3.1 | 4.4 | 18 | 4 | ≤12.1 | 2 | 1.0 |
ProgressEvent interface it belongs to.
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https://developer.mozilla.org/en-US/docs/Web/API/ProgressEvent/lengthComputable