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node_modules/core-js/modules/web.btoa.js

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+'use strict';
+var $ = require('../internals/export');
+var global = require('../internals/global');
+var getBuiltIn = require('../internals/get-built-in');
+var uncurryThis = require('../internals/function-uncurry-this');
+var call = require('../internals/function-call');
+var fails = require('../internals/fails');
+var toString = require('../internals/to-string');
+var validateArgumentsLength = require('../internals/validate-arguments-length');
+var itoc = require('../internals/base64-map').itoc;
+
+var $btoa = getBuiltIn('btoa');
+var charAt = uncurryThis(''.charAt);
+var charCodeAt = uncurryThis(''.charCodeAt);
+
+var NO_ARG_RECEIVING_CHECK = !!$btoa && !fails(function () {
+  $btoa();
+});
+
+var WRONG_ARG_CONVERSION = !!$btoa && fails(function () {
+  return $btoa(null) !== 'bnVsbA==';
+});
+
+var WRONG_ARITY = !!$btoa && $btoa.length !== 1;
+
+// `btoa` method
+// https://html.spec.whatwg.org/multipage/webappapis.html#dom-btoa
+$({ global: true, bind: true, enumerable: true, forced: NO_ARG_RECEIVING_CHECK || WRONG_ARG_CONVERSION || WRONG_ARITY }, {
+  btoa: function btoa(data) {
+    validateArgumentsLength(arguments.length, 1);
+    // `webpack` dev server bug on IE global methods - use call(fn, global, ...)
+    if (NO_ARG_RECEIVING_CHECK || WRONG_ARG_CONVERSION || WRONG_ARITY) return call($btoa, global, toString(data));
+    var string = toString(data);
+    var output = '';
+    var position = 0;
+    var map = itoc;
+    var block, charCode;
+    while (charAt(string, position) || (map = '=', position % 1)) {
+      charCode = charCodeAt(string, position += 3 / 4);
+      if (charCode > 0xFF) {
+        throw new (getBuiltIn('DOMException'))('The string contains characters outside of the Latin1 range', 'InvalidCharacterError');
+      }
+      block = block << 8 | charCode;
+      output += charAt(map, 63 & block >> 8 - position % 1 * 8);
+    } return output;
+  }
+});