Trust The Process
Andres Reales 
The error “TypeError: Cannot convert undefined or null to object” happens when JavaScript attempts to convert null and undefined to an object. Below you can see examples of when this error occurs. In the previous example, notice how the Object.assign() , Object.keys() , and Object.values() methods expect a parameter o equivalent to any JavaScript object … Read more
Errors like “TS2532: Object is possible ‘undefined’” can happen after defining the value of a variable by using the array.find() method. Here are the possible reasons why thearray.find() method returns undefined: The predicate parameter or callback function passed to the array.find() doesn’t explicitly use the return keyword to return a truthy value. The predicate parameter … Read more
The other day I wrote an article about the dereference unary operator (*) and I needed a way to explain the unary operator by first explaining about pointers in Rust, which are the memory address location of, for example, a variable. However, I didn’t know how to print the pointer of a variable, without displaying … Read more
If you are using the asterisk (*) symbol in Rust, you are using the dereference unary operator to get the value of reference without the need of getting the reference that maps to the value stored in memory. However, there is a possibility you have tried to dereference a type in Rust just to come … Read more
Have you come across the following error error: missing type for const item in Rust? Chances are, you defined a constant value like this: At first, this doesn’t seem to be an error as Rust is capable of implicitly determine the data type of other non-constant scoped variables (let ) like the one you see … Read more
Have you recently seen the asterisk (*) symbol in Rust while reading someone else’s code and you are not sure what it means? No worries, this article will explain the meaning of * and show you how it can become handy during development. The asterisk (*) symbol is Rust’s dereference unary operator. The dereference operator … Read more
Have you ever cloned a Rust project on your local machine, installed all its dependencies, and attempted to compile it but you came across the error error: toolchain ‘nightly-x86_64-pc-windows-msvc’ is not installed. No worries, here is how you can fix this error. To fix the error error: toolchain ‘nightly-x86_64-pc-windows-msvc’ is not installed , make sure … Read more
As you learn more about Rust programming language, you find out functionalities that seem to work the same, when in reality they differ in subtle ways. This is the case for the Copy and Clone traits. This article will explain each trait and show you what makes each different from the otehr. In Rust, the … Read more
As you learn Rust, you find out more and more functions that sound like they behave in a similar way, when in reality they differ in subtle ways. This is the case for the functions then() , and_then() , and or_else(). No worries, this article will cover each of these methods as well as their … Read more
Result<T,E> is a common data type that allows propagating Rust errors without necessarily crashing the Rust program unless the program panics. The Result<T, E> is made out of T or generic data type when the result is Ok(T) or Err(E) whenever an error occurs. One common question new Rust developers ask is: How do you … Read more