Function getFP

  • Gets the first paint (FP) time of a web page using the Performance API. The FP time is the time it takes for the first pixel to be painted on the screen.

    Usage:

    getFP().then(
    res => {
    console.log(`FP: ${res}`);
    }
    );

    Output:

    FP: 123
    

    Returns Promise<number>

    A promise that resolves with the FP time in milliseconds, or 0 if the 'paint' entry type is not supported.