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FileReader Promise Helper
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const readFile = (file) => { | |
let reader = new global.FileReader(); | |
return new Promise((resolve, reject) => { | |
reader.onload = (event) => { | |
file.data = event.target. result; | |
resolve(file); | |
}; | |
reader.onerror = () => { | |
return reject(this); | |
}; | |
if (/^image/.test(file.type)) { | |
reader.readAsDataURL(file); | |
} else { | |
reader.readAsText(file); | |
} | |
}) | |
}; | |
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