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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | 12x 12x 104x 12x 54x 54x 54x 54x 12x 12x | const last = require('lodash/last'); const getExtension = filename => { return last(filename.split('.')).toLowerCase(); }; const validateExtension = (filename, supportedFileTypes) => { const fileExtension = getExtension(filename); const hasExtension = filename.includes('.'); const goodExtension = hasExtension && supportedFileTypes.includes(fileExtension); return goodExtension; }; module.exports.supportedFileExtension = validateExtension; module.exports.getFileExtension = getExtension; |