On earlier versions of IE, the first had the benefit that it could work with a null value. There is another way you can do to compare the strings with case insensitivity by converting both of the strings two uppercase or lowercase. The second form is generally preferred for its simplicity and readability. For example, you can apply toLowerCase directly on a date like this: var lower = (new Date()) Īnd which is effectively equivalent to: var lower = new Date().toString().toLowerCase() Apples documentation: A capitalized string is a string with the first character in each word changed to its corresponding uppercase value, and all remaining characters set to their corresponding lowercase values. If you need the lowercase or uppercase version of an operating system identifier, such as a file name, named pipe, or registry key, use the ToLowerInvariant or ToUpperInvariant methods. Doing so will imply automatic conversion to a string value prior to changing the case of each character in the resulting string value. Custom String interpolation and how you can use it to initialize a custom object from a string or convert it to a string. string.capitalized However this capitalizes first letter of every word. The casing operation that results from calling the ToLower() method takes the casing conventions of the current culture into account. Therefore you can invoke these functions even on non- String objects. As per § 15.5.4.17 of the ECMAScript Language Specification (ECMA-262), toLocaleLowerCase…Įxample: var lower = 'Your Name'.toLowerCase() Īlso note that the toLowerCase and toLocaleLowerCase functions are implemented to work generically on any value type. The difference is that toLocaleLowerCase will take current locale of the user/host into account. Use either toLowerCase or toLocaleLowerCase methods of the String object.

Convert string to lowercase in swift