1. Semicolons and Commas
2. Don’t Understand “Strict Mode.”
Your code must run in strict mode. This helps ensure that your code does what it should and doesn’t make any mistakes due to how variables are used or mistyped values. If you don’t understand how strict mode works, then make sure you get someone who does so they can help you understand how it works properly.
Faults will now be generated for code errors that would have been overlooked or failed quietly. A global variable with that name is automatically created when a value is assigned to an undeclared variable in strict mode. In strict mode, variables and functions declared inside an eval() statement are not generated in the scope of the statement they are declared in.
3. Incorrect Use of Function
A function should return a value based on its input parameters and not do anything else with those parameters. If a function does something other than return a value, then this function is called an impure function. An impure function can lead to unexpected results if it is used incorrectly or not documented correctly.
The problem is that the function is being called with the same parameters as before, but they are not being passed in correctly. The function expects a certain value but instead gets another value altogether. This can happen when there are multiple ways to pass a variable to a function, but one way is not used because it would make things more difficult than necessary or because another way is chosen for some reason.
4. Not Using Default Value
The default value is a value we assign to a variable when it does not have any value. It determines what the variable will hold if we do not assign any value to it. The default value is set by adding an underscore ( _ ) in front of the variable name and assigning its value as 0 or null. In this way, if we do not assign any value to a variable, then its default value remains as 0 or null.
It is a good habit to use default values when you don’t know what to put in the variable. It helps to avoid making mistakes while writing your code. For example, if you create a function and assign it to a variable with an empty value, you will not make a mistake. However, if you do not even use the default value, it may result in errors when you try to use it later.
5. Different Naming Variables
The naming of variables should follow the same pattern used throughout the program. This helps developers to understand what each variable is responsible for and how they interact with each other. If a variable has more than one purpose within your program, then it should be named so that it becomes easier to understand what each of them does.
The best way to learn to code is by doing. This cannot be easy if you are a beginner, but there are many ways that you can practice your coding skills. Try to solve different problems and see if you can make them work. When you often get stuck on a problem, you must push yourself beyond your comfort zone to find the solution. If you are having trouble with a particular problem, try asking someone with experience solving similar problems to get some insight into what is going wrong.
Solve Different Problems
This will help you understand the process of solving problems and may even inspire ideas for new types of problems that have not been considered before.
Try to Debug Your Code
Understand the Functions
Understand the Functions when you write code; you should know what each function does and how it works. You may not always understand how a function works, but if you can’t figure out why something doesn’t work, it might be because you don’t understand what the function does or how it works.