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arash16/makePlaceholder.js

Created December 10, 2019 13:12
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makePlaceholder.js
const cache = {};
export function makePlaceholder(width, height) {
const key = `${width}x${height}`;
if (!cache[key]) {
cache[key] = 'data:image/svg+xml;base64,' + window.btoa(
`<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 ${width} ${height}">
<rect width="${width}" height="${height}" fill="#f0f0f0"/>
</svg>`
);
}
return cache[key];
}
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