JavaScript - Part 11 (Coercion, Comparison Operators)

In this part I would like to raise a topic that can be one of the strangest concepts in JavaScript. Coercion By this concept we mean converting a value from one type to another. As it was sai...

Bartosz Łogwiniuk

May. 7th

JavaScript for beginners

JavaScript - Part 10 (Types, Operators, Operator Precedence, Associativity)

Types in JavaScript The way in which the JavaScript engine deals with types is called Dynamic Typing. It is based on the fact that there is no need to provide information about the type of vari...

Bartosz Łogwiniuk

Apr. 30th

JavaScript for beginners

JavaScript - Part 9 (Scope Chain)

Scope Chain At the beginning I would like to talk about a similar case as we had in the last part. Look at the script above. The difference between this and the one from the previous part i...

Bartosz Łogwiniuk

Apr. 26th

JavaScript for beginners

JavaScript - Part 8 (Variable Environments)

When we talk about JavaScript and how it works under the hood we can't forget about Variable Environments. It's related to the Function Execution Context too. Variable Environments There were...

Bartosz Łogwiniuk

Apr. 23rd

JavaScript for beginners

JavaScript - Part 7 (Invocation, Execution Stack)

In this post, I want to discuss one of the most important topics, which in a way is connected with the issue from the previous part. However, before we get to it, I want to explain quickly what In...

Bartosz Łogwiniuk

Apr. 19th

JavaScript for beginners

Creating dynamic attribute accessors

Metaprogramming, the art of messing with the internals of a programming language, is one of the most powerful learning tools an aspiring programmer can utilize. It's very easy to take the workings ...

Paweł Bartulewicz

Apr. 18th

metaprogramming attribute accessors

JavaScript - Part 6 (Single Threaded, Synchronous)

This part will be the shortest of all, but before the next posts, I would like to discuss these two concepts. Although the explanations provided here will be useful in subsequent posts, I think th...

Bartosz Łogwiniuk

Apr. 16th

JavaScript - Part 5 (Execution Context: Execution Phase)

Execution Context: (Code) Execution Phase As you recall from the previous part, I mentioned that there are two phases that take place in the Execution Context. The first is Creation Phase, the ...

Bartosz Łogwiniuk

Apr. 12th

JavaScript for beginners

JavaScript - Part 4 (Hoisting, Execution Context: Creation Phase)

In the current post I would like to develop some of what was discussed in part 3. At the beginning, we'll slightly change our one.js JavaScript file. Now that our file looks like this, let's ...

Bartosz Łogwiniuk

Apr. 9th

JavaScript for beginners

JavaScript - Part 3 (Global Object)

In this part, I would like to raise one topic. Global Object. Let's start. In a situation where we have already written our first JavaScript program that for example is a function displaying "He...

Bartosz Łogwiniuk

Apr. 5th

JavaScript for beginners

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