関連ワード:  javascript check first character in string    javascript get first character in string    javascript get first character of string uppercase    javascript test first character of string    javascript check first 4 characters string    javascript get first letter of string    javascript get first letter of each word in string    javascript check first two characters of string    js check if first character of string is number    javascript check first 3 characters of string  
結果 : javascript check first character in string