Remove only the first unnecessary letter from a string-CodePudding

for learning purposes I want to remove only the FIRST letter 'a' from a string using a function. My function however removes ALL letters 'a' from the given string.

function removeFirstLetterA(str) {
  let letterA = 'a';
  for (let i = 0; i < str.length; i  ) {
    if (str[i] === letterA) {
      str = str.replace(letterA, '');
    } 
}

return str;
}

Can anyone see my mistake and give any tips?

CodePudding user response：

The mistake is that you don't stop when you come across and delete the first letter. Inside the if-block, you can break the loop, so that it won't continue after deleting the first one.

...
if (str[i] === letterA) {
  str = str.replace(letterA, '');
  break;
} 
...

Btw, you don't need a loop to delete the first match. Replace already does that. This would be enough:

function removeFirstLetterA(str) {
    return str.replace('a', '');
}