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Replace Characters in a String

Given a string s, replace all occurrences of character a with character b and return the modified string.

Difficulty:

JavaScript Solution

function replaceChar(s, a, b) {
  return s.split(a).join(b);
}

Explanation: We split the string by the target character and join it using the replacement character.

⏱ O(n) | 💾 O(n)

Console

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