@newdash/newdash/.internal/createCaseFirst.js

javascript/typescript utility library

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const castSlice_1 = __importDefault(require("./castSlice"));
const hasUnicode_1 = __importDefault(require("./hasUnicode"));
const stringToArray_1 = __importDefault(require("./stringToArray"));
/**
 * 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 (string) => {
        if (!string) {
            return '';
        }
        const strSymbols = (0, hasUnicode_1.default)(string)
            ? (0, stringToArray_1.default)(string)
            : undefined;
        const chr = strSymbols
            ? strSymbols[0]
            : string[0];
        const trailing = strSymbols
            ? (0, castSlice_1.default)(strSymbols, 1).join('')
            : string.slice(1);
        return chr[methodName]() + trailing;
    };
}
exports.default = createCaseFirst;