What is Linting in Angular? Understand with Example

What Is Lint Code?

Linting is the process of checking the source code for Programmatic as well as Stylistic errors. A linter tool/program is a basic static code analyzer. It is available for most languages like JavaScript, Angular, Python, etc.

Importance of Linting in Angular

• To reduce errors and improve the overall quality of code.
• When code grows, Keeping coding style consistent throughout your application helps you in matters like code reviews, easy for other developers to understand, easy to extent and lot more.
• Using lint tools can help you accelerate development and reduce costs by finding errors earlier.
• As there is not compiling time errors, finding typos, syntax errors, uses of undeclared variables, calls to undefined or deprecated functions, for instance, helping developers to fix it faster and reduce bugs before execution.
• It improves the code readability.
• It can automatically correct some mistakes (auto fix).
• It manages the poor code Quality , meaningless work.
• It increases developers’ productivity and effectiveness.

How Do Lint Tools / Linter Work?

• Write the code.
• Compile it.
• Analyze it with the linter.
• Review the bugs identified by the tool.
• Make changes to the code to resolve the bugs.
• Link modules once the code is clean.
• Analyze them with the linter.
• Do manual code reviews.

Let’s Check Linting in Angular 11 with Example

Step 1: Create an application with angular 11.

$ ng new sample-lint

Step 2: Now check the lint

$ ng lint

• There is no any linting error. When application is created.

Step 3: Let’s make few changes and check

Example: 1 Single quote (tslint.json)

• Developer can set their coding format in this file.

Here we have update the code. Writing the code with “ ”.

Now check with lint : Get an error for the “ ”

$ ng lint

Example : 2 Create a function, and check with lint, and lint having typedef error

• Let’s add return type after the function, and check with lint.

That’s it. Over To You!

That’s it for now. Today you have learned what is linting in angular with example. Happy Coding…

At last, If you’re dealing with large-scale applications or enterprise software, it is beneficial to take experts’ help. If you’re looking for an expert helping hand, contact Samarpan Infotech and hire Angular JS Developers who having senior level(5+ years) of experience working on enterprise software.

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