Program does not contain a static ‘Main’ method suitable for an entry point – Sitecore 8.2

When you set up a visual studio project for Sitecore, you need to set Output type to Class Library. If it is set to Windows Application or Console Application, you need to change it to Class Library. Otherwise you get a build error below.

error CS5001: Program does not contain a static 'Main' method suitable for an entry point

To solve this, go to the project. Right click the project and choose Properties. Then change the Output type to Class Library.

Fixed.

Yay!

Front-End
TypeScript: type aliases to check type equality

This post is to analyse how the type equality check by using type aliases proposed by Matt Pocock in his twitter post. These type aliases allow us to elegantly express type equality checks in unit tests. All we need to do is to pass the output and expected types in …

Front-End
Fixing it.only type error in Jest

If you are getting a type error with it.only in Jest, it could be due to incorrect TypeScript typings or incompatible versions of Jest and TypeScript. To resolve this issue, you can try the following steps: Make sure you have the latest versions of Jest and its TypeScript typings installed …

Front-End
yup conditional validation example

Here’s an example of a Yup validation logic where the first input field is optional but, if filled, it must contain only alphabetic characters, and the second input field is required: import * as Yup from “yup”; const validationSchema = Yup.object().shape({ firstField: Yup.string().matches(/^[A-Za-z]*$/, { message: “First field must contain only …