Strings in TypeScript – Part 3

Strings in TypeScript is divided in three parts:

• Part 1
• Part 2
• Part 3. This is Part 3

This section has the details of following methods:

toLocaleLowerCase	toLocaleUpperCase	toLowerCase
toUpperCase	toString	valueOf

toLocaleLowerCase()

This method will convert all the characters of a string in lower case representing the current locale.
Syntax

string.toLocaleLowerCase();

Below is a sample code

var str1 = new String("I like to eat MANGOES, WHICH are YELLOW in color");
console.log("Original String: " + str1);
console.log("Lower-case String: " + str1.toLocaleLowerCase());

Below is the output of above code

toLocaleUpperCase()

This method will convert all the characters of a string in upper case representing the current locale.
Syntax

string.toLocaleUpperCase();

Below is a sample code

var str1 = new String("I like to eat MANGOES, WHICH are YELLOW in color");
console.log("Original String: " + str1);
console.log("Upper-case String: " + str1.toLocaleUpperCase());

Below is the output of above code

toLowerCase()

This method will convert all the characters of a string in lower case.
Syntax

string.toLowerCase();

Below is a sample code

var str1 = new String("I like to eat MANGOES, WHICH are YELLOW in color");
console.log("Original String: " + str1);
console.log("Lower-case String: " + str1.toLowerCase());

Below is the output of above code

toUpperCase()

This method will convert all the characters of a string in upper case.
Syntax

string.toUpperCase();

Below is a sample code

var str1 = new String("I like to eat MANGOES, WHICH are YELLOW in color");
console.log("Original String: " + str1);
console.log("Upper-case String: " + str1.toUpperCase());

Below is the output of above code

toString()

This method returns the string representing the specified object. You can perform all the string operations on this converted object.
Syntax

object.toString();

Below is a sample code

var str1 = "I like to eat MANGOES, WHICH are YELLOW in color";
console.log("Original String: " + str1);
console.log(str1.toString());

Below is the output of above code

valueOf()

This method returns the primitive value of the String Object.
Syntax

string.valueOf();

Below is a sample code

var str1 = "I like to eat MANGOES, WHICH are YELLOW in color";
console.log("Original String: " + str1);
console.log(str1.valueOf());

Below is the output of above code