NapCatQQ/.pnpm-store/v3/files/d7/af027c624b284ad5b0c1fa8bbda8f465dba2a88a1de9509258d6a21cf95dd0c8531375e07749331bf09589a6ce93c01fc46444c459fab59c83639a9662481d

import castSlice from './_castSlice.js';
import hasUnicode from './_hasUnicode.js';
import stringToArray from './_stringToArray.js';
import toString from './toString.js';

/**
 * Creates a function like `_.lowerFirst`.
 *
 * @private
 * @param {string} methodName The name of the `String` case method to use.
 * @returns {Function} Returns the new case function.
 */
function createCaseFirst(methodName) {
  return function(string) {
    string = toString(string);

    var strSymbols = hasUnicode(string)
      ? stringToArray(string)
      : undefined;

    var chr = strSymbols
      ? strSymbols[0]
      : string.charAt(0);

    var trailing = strSymbols
      ? castSlice(strSymbols, 1).join('')
      : string.slice(1);

    return chr[methodName]() + trailing;
  };
}

export default createCaseFirst;