网友回复
写法一: let name = 'hello' name.charAt(0).toUpperCase() + name.slice(1) 写法二: let name = 'hello' name.slice(0, 1).toUpperCase() + name.slice(1) 写法三: let name = 'hello' name.substring(0, 1).toUpperCase() + name.substring(1)
网友回复
写法一: let name = 'hello' name.charAt(0).toUpperCase() + name.slice(1) 写法二: let name = 'hello' name.slice(0, 1).toUpperCase() + name.slice(1) 写法三: let name = 'hello' name.substring(0, 1).toUpperCase() + name.substring(1)