Congratulations!

You've taken a small step for a person but a giant leap for your successful career! You've successfully completed the beginner course on TypeScript, and that's commendable. If you've tackled all the tasks and studied the theory, you're doing great! But if you skipped chapters just to get the certificate, well, that's your problem.

Let's summarize the entire beginner course, what TypeScript is, and why it's essential. We'll revisit the basic syntax, TypeScript's advantages, and much more.

Overall

TypeScript is a general purpose programming language that serves as a superset of JavaScript. TypeScript stands out with its static typing, error highlighting during the coding phase, object-oriented programming features, and many other improvements compared to JavaScript.

TypeScript is beloved and widely used. It's the go-to choice for front-end development in many prominent companies and is a key component in various popular frameworks. The simplest example is Angular.

Syntax

To display information in the console, we use the following syntax:

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If we want to declare a variable without any type, we can use the following syntax:

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Typed variable:

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One-line comment:

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Multi-line comment:

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Conditional Statements

Syntax of the if statement:

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condition must have a boolean type!

if-else statement:

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Switch-case:

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Arrays

Declaring array:

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Zero-based indexing:

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It means that the first element in the array will have an index 0, the second element will have an index 1, and so on.

You can get the element from the array using it's index:

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You can also modify the array's elements using their indexes:

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You can explore array methods in this chapter: Working with Array Elements

Loops

while-loop syntax:

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The keyword break is used to immediately stop the execution of a loop.

do-while loop syntax:

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The do-while loop will execute at least once.

for loop syntax:

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Functions

Functions syntax:

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How to call a function?

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These are the basic concepts and syntax you've covered in this course.

From this point on, you have a foundation in TypeScript, and you can write simple programs and functions. In future courses, you will learn more advanced topics, such as object-oriented programming, classes, objects, anonymous functions, and much more.

Now, I want to congratulate you once again and wish you a well-deserved rest. You've done great!