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Current File : //var/www/html/node_modules/core-js-pure/modules/web.btoa.js

var $ = require('../internals/export');
var getBuiltIn = require('../internals/get-built-in');
var uncurryThis = require('../internals/function-uncurry-this');
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();
});

// `btoa` method
// https://html.spec.whatwg.org/multipage/webappapis.html#dom-btoa
$({ global: true, enumerable: true, forced: NO_ARG_RECEIVING_CHECK }, {
  btoa: function btoa(data) {
    validateArgumentsLength(arguments.length, 1);
    if (NO_ARG_RECEIVING_CHECK) return $btoa(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;
  }
});

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