Egghead Instructor Basarat Ali Syed

Basarat Ali Syed

That #TypeScript guy. Helping #JavaScript - TS upgrades. YouTuber, Book Author, Presenter, OSS Dev .



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Browse Basarat Ali Syed's lessons.

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Render Basic SVG Components in React

Simplify asynchronous callback functions using async/await

Catch unsafe use of "this" in TypeScript functions

Make usages of "this" safe in class methods

Use the never type to avoid code with dead ends using TypeScript

Bootstrap a TypeScript + React Project

Create stateless React components using TypeScript

Increase TypeScript's type safety with noImplicitAny

Create stateful React Components using TypeScript

Using TypeScript for pure JavaScript

Create a fluent API using TypeScript classes

Using ES6 and ESNext with TypeScript

Coding interview: FizzBuzz problem and its solution

Serialize objects to JSON

Getting started with Jest using TypeScript

Sorting arrays in TypeScript

Generics using TypeScript

Create high quality npm packages using TypeScript

Case insensitive sorting for string arrays

Deep Copy aka Clone objects using TypeScript

Algorithm to determine if two strings are an anagram

Algorithm to determine if a string is a palindrome

Bubble sort using TypeScript

Insertion sort algorithm using TypeScript

Merge sort algorithm using TypeScript

Find the repeated item in an array using TypeScript

react tutorial about Render Basic SVG Components in React

Render Basic SVG Components in React

1:35 react

React loves svg just as much as it loves html. In this lesson we cover how simple it is to make SVG components in ReactJS.

Creating SVG components with React allows you to inline SVG. Inline SVG has an advantage that it can be styled with CSS just like the rest of your webpage and doesn't need a separate web request to load.

An additional advantage is of-course that you can use component props to customize the contents of the SVG.

typescript tutorial about Simplify asynchronous callback functions using async/await

Simplify asynchronous callback functions using async/await

1:48 typescript

Learn how to write a promise based delay function and then use it in async await to see how much it simplifies code over setTimeout.

Lets say you want to call a function after 1s, 2s, 3s. You can use setTimeout, or you can wrap it up into a simple delay function that works with async/await

typescript tutorial about Catch unsafe use of "this" in TypeScript functions

Catch unsafe use of "this" in TypeScript functions

1:04 typescript

this is probably the most tricky thing to use in JavaScript and therefore TypeScript. Fortunately there is a TypeScript compiler flag noImplicit this that can help catch unsafe usages so beginners don't get caught off guard.

typescript tutorial about Make usages of "this" safe in class methods

Make usages of "this" safe in class methods

0:59 typescript

this is determined by how you call a function. To write class methods that can always safely use this you can use the TypeScript property initializer syntax along with arrow functions.

typescript tutorial about Use the never type to avoid code with dead ends using TypeScript

Use the never type to avoid code with dead ends using TypeScript

1:24 typescript

Programming language design does have a concept of bottom type that is a natural outcome as soon as you do code flow analysis. TypeScript does code flow analysis (😎) and so it needs to reliably represent stuff that might never happen. This is what the never type is all about.

typescript tutorial about Bootstrap a TypeScript + React Project

Bootstrap a TypeScript + React Project

5:54 typescript

Setup a TypeScript + React project from scratch using webpack. Learn the reason behind every line that you need to type and become an expert.

typescript tutorial about Create stateless React components using TypeScript

Create stateless React components using TypeScript

1:13 typescript

You can create a stateless React component in TypeScript by just creating a function.

But if you want to create high quality idiomatic React + TypeScript components you should use the React.StatelessComponent interface. This is demonstrated in the video.

typescript tutorial about Increase TypeScript's type safety with noImplicitAny

Increase TypeScript's type safety with noImplicitAny

2:24 typescript

TypeScript tries to infer as much about your code as it can.

But sometimes there really is not enough context for it to infer reliably. If it tried to do such inference it would potentially result in more nuisance than help. So instead it infers the type any. This type can catch people off guard as it provides very little type safety. Fortunately TypeScript has a flag to make it easier to catch such unsafe code at development time.

typescript tutorial about Create stateful React Components using TypeScript

Create stateful React Components using TypeScript

2:56 typescript

You can create stateful React Components in TypeScript by extending from the React.Component class. This parent class takes two generic parameters, Props and State.

This lessons shows these generic parameters and React.Component in action

typescript tutorial about Using TypeScript for pure JavaScript

Using TypeScript for pure JavaScript

2:15 typescript

TypeScript can actually be used just as a JavaScript -> JavaScript Transpiler e.g. ES6 -> ES5. This allows you to easily maintain your old JavaScript code base along with potentially uplifting to a TypeSafe version using a single compiler.

typescript tutorial about  Create a fluent API using TypeScript classes

Create a fluent API using TypeScript classes

3:09 typescript

You can create an easy to chain API using TypeScript classes. Learn about the this return type annotation and how it plays with function chaining and class inheritance.

typescript tutorial about Using ES6 and ESNext with TypeScript

Using ES6 and ESNext with TypeScript

2:49 typescript

TypeScript is very particular about what is and isn't allowed in a TS file to protect you from common developer errors. By default if you set the compile target to ES5 it only allows you to use globally defined variables that were available in the ES5 time-frame. That said it is super easy to configure TypeScript to use ES6 or ESNext using the lib option.

We also cover how to make sure that these features work across the widest range of browsers using a simple polyfill.

typescript tutorial about Coding interview: FizzBuzz problem and its solution

Coding interview: FizzBuzz problem and its solution

4:19 typescript

The FizzBuzz problem is commonly presented as the lowest level of comprehension required to illustrate adequacy in computer programming.

In this lesson you learn about the problem as well as its solution in TypeScript. We will also cover some tricks on approaching the problem and coding interview questions in general.

typescript tutorial about Serialize objects to JSON

Serialize objects to JSON

4:32 typescript

JSON (JavaScript Object Notation) is a lightweight data-interchange format. It is easy for humans to read and write. It is easy for machines to parse and generate.

Doing JSON serialization and deserialization in JavaScript and TypeScript is super easy as it is a format essentially designed for this language. This lesson covers the JSON.stringify primitive provided by JavaScript runtimes.

typescript tutorial about Getting started with Jest using TypeScript

Getting started with Jest using TypeScript

3:17 typescript

Jest is a painless JavaScript unit testing framework from Facebook. It is designed to be super easy to setup and is packed full of powerful features. In this lesson we see how easy it is to add to your TypeScript project. This will be followed by a quick example application.

typescript tutorial about Sorting arrays in TypeScript

Sorting arrays in TypeScript

3:54 typescript

In this lesson we cover all the details of how to sort a list of items using TypeScript. We also present a few tricks to make your sort logic more readable and maintainable using TypeScript.

typescript tutorial about Generics using TypeScript

Generics using TypeScript

5:16 typescript

In this lesson we cover the key reason why programming languages need generics. We then show how use them effectively with TypeScript. We show plenty of examples where generics prevent common programming mistakes.

typescript tutorial about Create high quality npm packages using TypeScript

Create high quality npm packages using TypeScript

3:54 typescript

The TypeScript compiler makes it super easy to create high quality NodeJS packages that can be used with compile time safety in other TypeScript packages.

Using JavaScript packages written in TypeScript can save you a lot of time digging around docs and then having to memorize the docs, in order to call the functions with the right spellings. This frees you up for a higher level of thinking and reasoning about logic and business requirements.

typescript tutorial about Case insensitive sorting for string arrays

Case insensitive sorting for string arrays

1:33 typescript

We look at the default Array.prototype.sort behavior and discuss how you can do case insensitive string sorting.

typescript tutorial about Deep Copy aka Clone objects using TypeScript

Deep Copy aka Clone objects using TypeScript

2:25 typescript

You can create copies of JavaScript objects by coping around properties e.g. const x = {foo: 123}; const y = { foo: x.foo }. However doing this manually for deep objects can be time consuming. In this lesson we cover one way of deep copying simple objects in TypeScript.

typescript tutorial about Algorithm to determine if two strings are an anagram

Algorithm to determine if two strings are an anagram

3:52 typescript

The anagram test is commonly used to demonstrate how an naive implementation can perform significant order of magnitudes slower than an efficient one.

A word is an anagram of another if you can rearrange its characters to produce the second word. Here we write a function that given two strings determines if they are anagrams of each other.

typescript tutorial about Algorithm to determine if a string is a palindrome

Algorithm to determine if a string is a palindrome

3:35 typescript

A palindrome is a string that reads the same forward and backward, for example, radar, toot, and madam. In this lesson we discuss how to approach the palindrome problem using TypeScript / JavaScript.

We also discuss a more complex algorithmic challenge of writing a function to check if any permutation of a given string is a palindrome.

typescript tutorial about Bubble sort using TypeScript

Bubble sort using TypeScript

3:25 typescript

Bubble sort is considered the simplest sorting algorithm to implement.

In this lesson we cover the bubble sort algorithm, how it gets its name, and how to implement it using TypeScript / JavaScript.

typescript tutorial about Insertion sort algorithm using TypeScript

Insertion sort algorithm using TypeScript

3:43 typescript

Insertion sort is a very intutive algorithm as humans use this pattern naturally when sorting cards in our hands.

In this lesson we cover the insertion sort algorithm, how it gets its name, and how to implement it using TypeScript / JavaScript.

typescript tutorial about Merge sort algorithm using TypeScript

Merge sort algorithm using TypeScript

5:39 typescript

MergeSort is a famous example of a divide and conquer algorithm. In this lesson we cover the merge sort algorithm, how it gets its name, and how to implement it using TypeScript / JavaScript.

typescript tutorial about Find the repeated item in an array using TypeScript

Find the repeated item in an array using TypeScript

1:44 typescript

Say you have an array that has at least one item repeated. How would you find the repeated item. This is a question commonly presented to beginner developers. Here we discuss the elegant solution to this problem.

HEY, QUICK QUESTION!
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