write-excel-file/commonjs/write/getFileExtensionForContentType.js

Write simple `*.xlsx` files in a browser or Node.js

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = getFileExtensionForContentType;
function getFileExtensionForContentType(contentType) {
  if (!contentType) {
    throw new Error('`contentType` is required');
  }
  // Discards everything before the slash, and the slash too.
  // Example: "image/jpeg" → "jpeg".
  var extension = contentType.toLowerCase().replace(/.*\//, '');
  if (!extension) {
    throw new Error('Unsupported `contentType`: ' + contentType);
  }
  return extension;
}
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