JavaScript:实现检查字符串是否包含字母表中所有字母的算法（附完整源码）

/**
 * @function checkPangramRegex
 * @description - This function check pangram with the help of regex pattern
 * @param {string} string
 * @returns {boolean}
 * @example - checkPangramRegex("'The quick brown fox jumps over the lazy dog' is a pangram") => true
 * @example - checkPangramRegex('"Waltz, bad nymph, for quick jigs vex." is a pangram') => true
 */
const checkPangramRegex = (string) => {