import { isString } from 'vuepress/shared';
export { isFunction, isString, isPlainObject } from 'vuepress/shared';
/* Type helper */
/**
 * Check if a value is defined
 *
 * 检查值是否已定义
 *
 * @param val - The value to check / 要检查的值
 *
 * @returns Whether the value is defined / 值是否已定义
 *
 * @example
 * ```ts
 * isDef(undefined) // false
 * isDef(null) // true
 * isDef(0) // true
 * ```
 */
// eslint-disable-next-line @typescript-eslint/no-explicit-any
export const isDef = (val) => typeof val !== 'undefined';
/**
 * Check if a value is boolean
 *
 * 检查值是否为布尔值
 *
 * @param val - The value to check / 要检查的值
 *
 * @returns Whether the value is boolean / 值是否为布尔值
 *
 * @example
 * ```ts
 * isBoolean(true) // true
 * isBoolean(false) // true
 * isBoolean('true') // false
 * ```
 */
// eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types, @typescript-eslint/no-explicit-any
export const isBoolean = (val) => typeof val === 'boolean';
/**
 * Check if a value is number
 *
 * 检查值是否为数字
 *
 * @param val - The value to check / 要检查的值
 *
 * @returns Whether the value is number / 值是否为数字
 *
 * @example
 * ```ts
 * isNumber(42) // true
 * isNumber('42') // false
 * isNumber(NaN) // true
 * ```
 */
// eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types, @typescript-eslint/no-explicit-any
export const isNumber = (val) => typeof val === 'number';
/**
 * Check if a value is array
 *
 * 检查值是否为数组
 */
export const { isArray } = Array;
/**
 * Check if a value is regexp
 *
 * 检查值是否为正则表达式
 *
 * @param val - The value to check / 要检查的值
 *
 * @returns Whether the value is regexp / 值是否为正则表达式
 *
 * @example
 * ```ts
 * isRegExp(/test/) // true
 * isRegExp('test') // false
 * ```
 */
export const isRegExp = (val) => val instanceof RegExp;
/* String helper */
/**
 * Check if a value is starting with the given prefix
 *
 * 检查值是否以给定前缀开头
 *
 * @param str - The string to check / 要检查的字符串
 * @param prefix - The prefix to match / 要匹配的前缀
 *
 * @returns Whether the string starts with the prefix / 字符串是否以前缀开头
 *
 * @example
 * ```ts
 * startsWith('hello world', 'hello') // true
 * startsWith('hello world', 'world') // false
 * startsWith(123, 'hello') // false
 * ```
 */
export const startsWith = (str, prefix) => isString(str) && str.startsWith(prefix);
/**
 * Check if a value is ending with the given suffix
 *
 * 检查值是否以给定后缀结尾
 *
 * @param str - The string to check / 要检查的字符串
 * @param suffix - The suffix to match / 要匹配的后缀
 *
 * @returns Whether the string ends with the suffix / 字符串是否以后缀结尾
 *
 * @example
 * ```ts
 * endsWith('hello world', 'world') // true
 * endsWith('hello world', 'hello') // false
 * endsWith(123, 'world') // false
 * ```
 */
export const endsWith = (str, suffix) => isString(str) && str.endsWith(suffix);
export { ensureEndingSlash, ensureLeadingSlash, removeEndingSlash, removeLeadingSlash, } from 'vuepress/shared';
/* Object helper */
export const { entries } = Object;
export const { fromEntries } = Object;
export const { keys } = Object;
export const { values } = Object;