Javascript method for changing snake_case to PascalCase

Question

I\'m looking for a JS method that will turn snake_case into PascalCase while keeping slashes intact.

// examples:
post -> Post
a         


        

Answer 1

Here's a solution that preserves slashes and converts snake_case to PascalCase like you want.

const snakeToPascal = (string) => {
  return string.split("/")
    .map(snake => snake.split("_")
      .map(substr => substr.charAt(0)
        .toUpperCase() +
        substr.slice(1))
      .join(""))
    .join("/");
};

It first splits the input at the '/' characters to make an array of snake_case strings that need to be transformed. It then splits those strings at the '_' characters to make an array of substrings. Each substring in this array is then capitalized, and then rejoined into a single PascalCase string. The PascalCase strings are then rejoined by the '/' characters that separated them.