changeHumpToLowerCase

Convert camelCase naming to snake_case naming (lowercase).

API

changeHumpToLowerCase

Return

Argument	Description	Type
string	Converted string	string

Parameters

Parameter	Description	Type	Default
str	String to convert	string	Required

Example

Basic Usage

import { changeHumpToLowerCase } from 'ranuts';

console.log(changeHumpToLowerCase('userName')); // 'user_name'
console.log(changeHumpToLowerCase('getUserInfo')); // 'get_user_info'
console.log(changeHumpToLowerCase('XMLHttpRequest')); // '_x_m_l_http_request'

Handle Consecutive Uppercase Letters

import { changeHumpToLowerCase } from 'ranuts';

console.log(changeHumpToLowerCase('XMLParser')); // '_x_m_l_parser'
console.log(changeHumpToLowerCase('HTTPSRequest')); // '_h_t_t_p_s_request'

API Naming Conversion

import { changeHumpToLowerCase } from 'ranuts';

const apiName = 'getUserProfile';
const dbField = changeHumpToLowerCase(apiName);
console.log(dbField); // 'get_user_profile'

Notes

1. Conversion rules: Adds underscore before uppercase letters and converts to lowercase.
2. First letter handling: If first letter is uppercase, adds underscore before it.
3. Consecutive uppercase: Consecutive uppercase letters are handled separately, each uppercase letter gets an underscore before it.
4. Use case: Commonly used to convert JavaScript camelCase naming to database field names or API parameter names.