TypeScript Exercise 3: Name Cases: Store a name in variable, and show in lower, upper, title case
Assignment 3: Name Cases: Store a person’s name in a variable, and then print that person’s name in lowercase, uppercase, and titlecase.
Solution:
This TypeScript code takes a person's name, stored in the PersonName variable, and then performs three operations on it to display the name in lowercase, uppercase, and titlecase. Let's go through each step:
Code on GitHub: https://github.com/typescriptkamran/e...
Step 1: Show the name in lowercase
let lowercaseName: string = PersonName.toLowerCase();
console.log(lowercaseName);
In this step, the toLowerCase() method is used on the PersonName variable, which converts all the characters in the name to lowercase. The result is stored in the lowercaseName variable, and then it is printed to the console using console.log().
Step 2: Show the name in uppercase
let uppercaseName: string = PersonName.toUpperCase();
console.log(uppercaseName);
In this step, the toUpperCase() method is used on the PersonName variable, which converts all the characters in the name to uppercase. The result is stored in the uppercaseName variable, and then it is printed to the console using console.log().
Step 3: Show the name in titlecase
let words: string[] = PersonName.split(" ");
let titlecaseName: string = "";
console.log(titlecaseName);
In this step, the name is converted to titlecase. First, the split() method is used on the PersonName variable with a space (" ") as the delimiter. This splits the name into an array of words, which is stored in the words variable.
Next, a loop is used to iterate through each word in the words array. Within the loop, the first character of each word is converted to uppercase using charAt(0).toUpperCase(). Then, the rest of the characters in the word are converted to lowercase using slice(1).toLowerCase(). The resulting titlecase word is concatenated with the titlecaseName variable, and a space is added to separate each word.
Finally, the titlecaseName variable, containing the titlecase name, is printed to the console using console.log().
Example output:
Step 1 (Lowercase): muhammad kamran ali rana
Step 2 (Uppercase): MUHAMMAD KAMRAN ALI RANA
Step 3 (Titlecase): Muhammad Kamran