関連ワード:  typescript get first character of string    typescript check first character of string    typescript get first n characters of string    typescript get first 3 characters of string    typescript get first two characters of string    typescript get first 10 characters of string    typescript get first 4 characters of string    typescript get first x characters of string    typescript get first letter of string    typescript first character of string  
結果 : typescript get first character of string