Question

需要将输出作为 1 个字符串而不是循环字符串我自己得到每个字母的输出需要有第二个输出，即一个词

提前致谢：D

let start = 0;
let swappedName = "elZerO";

for (let i = start; i<swappedName.length; i++){
    if (swappedName[i] == swappedName[i].toUpperCase()) {
        console.log(swappedName[i].toLowerCase());
    }else {
        console.log(swappedName[i].toUpperCase());
    }
}

//Output
E
L
z
E
R
o

// Need to be 
"ELzERo"

Answer 1

使用 string = string0+string1 ，或继续向数组添加值，然后使用 array.join() 加入数组

MasteringJs has a great guide on ways to merge characters and strings.

let start = 0;
let swappedName = "elZerO";
var outputString="";
var outputStringArray=[];
var newChar="";
for (let i = start; i<swappedName.length; i++){
    if (swappedName[i] == swappedName[i].toUpperCase()) {
      newChar = swappedName[i].toLowerCase();
    }else {
        newChar=swappedName[i].toUpperCase();
    }
    outputStringArray.push(newChar);
    outputString+=newChar;
}
console.log("[Output using string1 + string 2] is "+outputString); // Another example of concating string

console.log("[Output using array.join] is "+outputStringArray.join("")); // Another example of concating string
// Need to be 
"ELzERo"

需要从 Looped Chars JS 获得一个字符串

1 个答案: