bbo/es/de_capitalize.js

bbo is a utility library of zero dependencies for javascript.

import './get_tag.js';
import isString from './is_string.js';
import isNil from './is_nil.js';

/**
 * DeCapitalizes the first letter of a string.
 */

function coerceToString(value) {
  var defaultValue = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : '';

  if (isNil(value)) {
    return defaultValue;
  }

  if (isString(value)) {
    return value;
  }

  return String(value);
}

function deCapitalize(subject) {
  var subjectString = coerceToString(subject);

  if (subjectString === '') {
    return '';
  }

  return subjectString.substr(0, 1).toLowerCase() + subjectString.substr(1);
}

export default deCapitalize;