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benfoxall/gifsize.js

Created January 16, 2021 17:14
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  1. benfoxall created this gist Jan 16, 2021.
    11 changes: 11 additions & 0 deletions gifsize.js
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,11 @@
    await gifsize('https://media.giphy.com/media/3ornjZLITGcFQVRbxK/source.gif')
    // > {width: 500, height: 247}


    async function gifsize (url) {
    const result = await fetch(url, {headers: {Range: 'bytes=6-9'}})

    const [width, height] = new Uint16Array(await result.arrayBuffer())

    return {width, height}
    }