问题描述
let firstName = "Sean";
let lastName = "Bowden";
let role = 'developer';
var msg = firstName + " " + lastName + ": " + role + ".";
我需要使用.toupperCase()方法将角色变量转换为所有大写字母。
输出将为:Sean Bowden: DEVELOPER.
解决方法
这可能会帮助您。
let firstName = "Sean";
let lastName = "Bowden";
let role = 'developer';
role = role.toUpperCase()
var msg = firstName + " " + lastName + ": " + role + ".";
或
let firstName = "Sean";
let lastName = "Bowden";
let role = 'developer';
var msg = firstName + " " + lastName + ": " + role.toUpperCase() + ".";
,
在这种情况下,请尝试使用:
var msg =fisrstname + " " + lastname + ": " + role.toUpperCase() + ".";
注意:toUpperCase()
方法不会更改原始字符串。
提示:使用toLowerCase()
方法将字符串转换为小写字母。
let firstName = "Sean";
let lastName = "Bowden";
let role = "developer".toUpperCase();
var msg = firstName + " " + lastName + ": " + role + ".";
console.log(msg);