freeCodeCamp:Title Case a Sentence

JavaScript
1

Hello, everyone.
I am doing this challenge:

https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/basic-algorithm-scripting/title-case-a-sentence/

When I finished my code, I got an error message. That is, TypeError: cannot read property ‘split’ of undefined.:roll_eyes::roll_eyes:
How can I solve this problem?
Thanks.:sunglasses:

function titleCase(str) {
  // 请把你的代码写在这里
  var wordStr=str.split(" ");
  //for 為每個元素的第一個字母轉大寫
  for(var i=0;i<str.length;i++){
    var charStr=wordStr[i].split("");//將每個元素再拆一次，傳入一個arr
    charStr[0]=charStr[0].toUpperCase();
    wordStr[i]=charStr.join("");//將分解的字母合併成一個單字
  }
  str=wordStr.join(" ");
  return str;
  //每分解一次就給string不同名稱，怕搞混
}

titleCase("I'm a little tea pot");
2

Hi @a90100. You need to start debugging from the for loop. Your for loop is supposed to loop through wordStr, not str. The first line of code is fine. Hope this helps.

3

Oh,I didn’t notice it.Thank you so much.:smiley::smiley:

4

You are welcome. Have fun with the rest of the challenges!

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