DMGithinji

export function Unscrambler(list: string[]) {

    // helper functions
    const firstChar = (str: string) => str.charAt(0);
    const secondChar = (str: string) => str.charAt(1);
    const lastChar = (str: string) => str.charAt(str.length - 1);
    const secondLastChar = (str: string) => str.charAt(str.length - 2);

    const hasFirst = (str: string): boolean => firstChar(str) === '_';
    const hasLast = (str: string): boolean => str.slice(-1) === '_';