How do i replace letters with underscores but let the spaces stay in javascript Code Answer

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i am trying to replace the letters i get from the word with underscores but if there is any spaces in that word i do not want to replace it. im not sure how to do it. the current code i am using is this answerArray = [] function randomWord() {

    for (let i = 0; i < word.length; i++) {
        answerArray[i] = "_"
        answer.innerHTML = answerArray.join(" ")
    }
}

i’ve tried to look around in stackoverflow with my question but no one has it. someones suggested this

word.replace(/w/gi, '_')

but it isnt working as i want.

You can check out the code here https://codepen.io/NoNameYet04/pen/OJxKYeV i have for the test change the word in “programming language” to “test test” so you can test it out

Answer

I did a quick example below. With problems like this it’s always better to try to break it down into small logical steps.

  • Go through each character

  • If it’s a space then leave it

  • If it’s not then replace with an _

    function randomWord(word) {
          let ret = ""; // return string
    
          for (let i = 0; i < word.length; i++) { // go through each character
              if(word[i] !== " "){ // if it's not a space then replace it
                ret += "_";
              } else if (word[i] === " "){ // if it's a space then we add to the return string
                ret += " ";
              }
    
          }
          return ret; //return or answer.innerHTML = ret;
    

    }

Call using: randomWord(“hello there”);

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