関連ワード:  javascript compare first 3 characters of string    javascript first 3 characters of string    javascript get first 3 characters of string    javascript check first 3 characters of string    javascript remove first 3 characters of string    javascript first 3 letters of string    js get first 3 characters of string    javascript get first 3 letters of string  
結果 : javascript compare first 3 characters of string