tmdbrjs
Version:
A TypeScript wrapper for The Movie Database (TMDB) API
43 lines • 1.57 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.camelToSnakeCase = camelToSnakeCase;
exports.camelToSnakeCaseArray = camelToSnakeCaseArray;
/**
* Converts a camelCase string to snake_case
* @param str The camelCase string to convert
* @returns The snake_case version of the string
*/
function camelToSnakeCase(str) {
// Handle empty string
if (!str)
return str;
let result = '';
for (let i = 0; i < str.length; i++) {
const char = str[i];
const prevChar = i > 0 ? str[i - 1] : '';
const nextChar = i < str.length - 1 ? str[i + 1] : '';
// Check if we need to insert an underscore
if (i > 0 && /[A-Z]/.test(char)) {
// Case 1: lowercase/digit followed by uppercase (camelCase -> camel_case)
if (/[a-z\d]/.test(prevChar)) {
result += '_';
}
// Case 2: uppercase followed by uppercase+lowercase (XMLHttp -> xml_http)
else if (/[A-Z]/.test(prevChar) && nextChar && /[a-z]/.test(nextChar)) {
result += '_';
}
}
result += char.toLowerCase();
}
// Remove leading underscore if present
return result.replace(/^_/, '');
}
/**
* Converts an array of camelCase strings to snake_case
* @param arr The array of camelCase strings to convert
* @returns The array with all strings converted to snake_case
*/
function camelToSnakeCaseArray(arr) {
return arr.map((item) => camelToSnakeCase(item));
}
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