This content originally appeared on DEV Community and was authored by Chinwendu Agbaetuo
Write a function that takes a single string in camelCase format and converts it into a string in snake_case format.
Solution
// A function camelToCase that takes a string (text) as the parameter.
function camelToCase(text) {
// Transform each uppercase letter (character) based on its position.
function upperToUnderScoreLower(character, position) {
// If the letter isn't the first character, add an underscore and convert it to lowercase.
return (position > 0 && "_") + match.toLowerCase();
}
// Replace all uppercase letters in (text) by calling the upperToUnderScoreLower function.
return text.replace(/[A-Z]/g, upperToUnderScoreLower);
}
console.log(camelToCase("camelToCase"));
Result
> camel_to_case
This content originally appeared on DEV Community and was authored by Chinwendu Agbaetuo