Basic algorithm scripting: Title_Case_a_Sentence(1)

JavaScript
1

hello, I’m having trouble coming up with a way of solving this problem.

title case a sentence - Basic algorithm scripting

I’m trying to figure out after spliting the string into an array then lowercase the string, after that how to use { toUpperCase} with replace() method.
then formulating a for loop to iterate through the array and finally joining them into one string.

I’m kinda-ish stuck there.

2

Hey there,

it makes sense to show us some code.

Your algorithm seems correct.

You can add a callback function as the second argument to the replace-method. You can read about it on MDN String.prototype.replace. Their example is fairly complex, but in the end you can pass the first character and return it in uppercase.

3

here it is:


function titleCase(str) {
let lowerCase = str.toLowerCase().split(" ");
let upperCase = lowerCase.replace(/(0)/i, lowerCase.toUpperCase())
for( let i = 0; i > lowerCase.length; i++){
; 
}
}

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

I’m abit lost

4

Log the variables after each step and see what this actually is.

When you split a string, you get an array.

What do you want to do with this next line:

5

I wanted to use Regexp to capitalize the first letter of the string, either use regexp or charAt(), and then from there join the array using a for loop.

I am abit lost there on how to use either of those methods. and how the for loop comes in.

6

But you’re trying to replace something in lowerCase, that’s an array.
You first have to go into each item of lowerCase.

// iterate through lowerCase (e.g. for loop)
  // make first character uppercase (e.g. replace method)
  // return item
// join all strings of array back together
7

Thanks, I scratched my head abit but I managed to solve it

1 Like
8

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