Answers for "how do i capitalize first and 5th letter of a string in javascript"

none

//capitalize only the first letter of the string. 
function capitalizeFirstLetter(string) {
    return string.charAt(0).toUpperCase() + string.slice(1);
}
//capitalize all words of a string. 
function capitalizeWords(string) {
    return string.replace(/(?:^|\s)\S/g, function(a) { return a.toUpperCase(); });
};

js capitalize first letter

// this will only capitalize the first word
var name = prompt("What is your name");
firstLetterUpper = name.slice(0,1).toUpperCase();

alert("Hello " + firstLetterUpper + name.slice(1, name.length).toLowerCase());

how to capitalize first letter of word in javascript

function capitalizeFirstLetter(str, inAllWordsOfString = false) {
  if (!inAllWordsOfString) {
    //convert given string to lowercase
    let lowerStr = str.toLowerCase();
    // Now convert first character to upper case
    let firstCharacter = str.charAt(0).toUpperCase();
    // Now combine firstCharacter and lowerStr and return
    return firstCharacter + lowerStr.slice(1);
  } else {
    let str1 = str.split(" ");
    let returnStr = "";

    for (let i = 0; i < str1.length; i++) {
      let lowerStr = str1[i].toLowerCase();
      returnStr =
        returnStr + str1[i].charAt(0).toUpperCase() + lowerStr.slice(1) + " ";
    }
    return returnStr.trim();
  }
}

capitalizeFirstLetter('hello word');
//output: Hello word

capitalizeFirstLetter('hello word', true);
//output : Hello Word