Javascript - mark 3 words characters using java

itsmeroyd
November 25, 2023
175 views
0 votes
2 Answers

so I’m trying to create func to find 3 letters words for a long text.

const fullstory =
  "One advanced etc etc"
document.querySelector("#story").innerHTML = fullstory;

const cutspace = fullstory.split(" ");

document.querySelector("#three").addEventListener("click", find3);

 function find3() {
  for (i = 0; i < cutspace.length; i++)
      if (cutspace[i].length<=3){
        //cutspace[i].style  // not working    
    };
}

what am i missing?

Tags: javascript

Answers

It seems like you’re trying to change the style of words in your text with a length less than or equal to 3 characters.

"Since ‘cutspace[i]’ is an array, directly changing its style using ‘.style’ is not applicable. To address this, you should restore the array value with the desired style and then proceed with the necessary modifications."

I believe the following code snippet may be useful for your solution.

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Count characters of string</title>
    <style>
        .red-text {
            color: red;
        }
    </style>
</head>

<body>
    <div id="story"></div>
    <button id="three">Three</button>
</body>
<script>
    const fullstory = "One advanced etc etc";
    document.querySelector("#story").innerHTML = fullstory;

    const cutspace = fullstory.split(" ");

    document.querySelector("#three").addEventListener("click", find3);

    function find3() {
        for (i = 0; i < cutspace.length; i++)
            if (cutspace[i].length <= 3) {
                console.log(cutspace[i])
                cutspace[i] = `<span class="red-text">${cutspace[i]}</span>`;
            };
        console.log(cutspace); // you will get array with red-text css addded.
        document.querySelector("#story").innerHTML = cutspace.join(" ");
    }
</script>

</html>

The below code uses a regex match to find all the three-letter words in a given text.

function findAllThreeLetterWords(text) {
  const words = text.match(/bw{3}b/g) || [];
  return words;
}

const longText = "This is a sample text with some three-letter words like cat, dog, and hat.";
const result = findAllThreeLetterWords(longText);

console.log(result);

function highlightThreeLetterWords() {
  const textElement = document.getElementById('text');
  const text = textElement.textContent || textElement.innerText;

  // Use a regular expression to match all three-letter words
  const words = text.match(/bw{3}b/g) || [];

  // Highlight each three-letter word
  const highlightedText = words.reduce((acc, word) => {
    return acc.replace(new RegExp(`\b${word}\b`, 'g'), `<span class="highlight">${word}</span>`);
  }, text);

  // Set the updated HTML content
  textElement.innerHTML = highlightedText;
}
window.onload = highlightThreeLetterWords;

<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Highlight Three-Letter Words</title>
  <style>
    .highlight {
      color: red;
      font-weight: bold;
    }
  </style>
</head>
<body>

<p id="text">This is a sample text with some three-letter words like cat, dog, and hat.</p>


<body>

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Javascript – mark 3 words characters using java

Answers