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var createCompounder = require('./_createCompounder');

/** Detect free variable `globalThis` */
const freeGlobalThis = typeof globalThis == 'object' && globalThis !== null && globalThis.Object == Object && globalThis;

/**
 * Converts `string`, as space separated words, to upper case.
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category String
 * @param {string} [string=''] The string to convert.
 * @returns {string} Returns the upper cased string.
 * @example
 *
 * _.upperCase('--foo-bar');
 * // => 'FOO BAR'
 *
 * _.upperCase('fooBar');
 * // => 'FOO BAR'
 *
 * _.upperCase('__foo_bar__');
 * // => 'FOO BAR'
 */
var upperCase = createCompounder(function(result, word, index) {
  return result + (index ? ' ' : '') + word.toUpperCase();
});

module.exports = upperCase;