JavaScript

Partial Matching in Jest

Partial Matching in Jest

  • October 25, 2023

Jest has the ability to check for partial matches on arrays and objects. Let us see how to do partial matching in Jest. expect has powerful matcher methods for partial matching, and they can also be combined with the tohavebeencalledwith method. Matching objects partially using expect.objectContaining When trying only to...

Fixing “error: cannot find module semver” error in Node.js

Fixing “error: cannot find module semver” error in Node.js

  • October 19, 2023

When installing a package using npm, you might encounter the “error: cannot find module semver” error. The error is caused because of a corrupted package-lock.json or yarn.lock. The most common reason for this is a change in the node version. Fixing “error: cannot find module semver” The fix is a...

Fix “Error:0308010C:digital envelope routines::unsupportedFixing” in Node.js

Fix “Error:0308010C:digital envelope routines::unsupportedFixing” in Node.js

  • October 17, 2023

Node 17 introduced OpenSSL v3.0, which brought in some breaking changes, and the “Error: error:0308010C:digital envelope routines::unsupported” is a result of one such change. It can be solved by passing in a “–openssl-legacy-provider” flag when running the application. Setting the NODE_OPTIONS environment variable We can set the environment variable that...

How to sort a Set in JavaScript

How to sort a Set in JavaScript

  • November 26, 2022

ES6 introduced the set data structure in JavaScript. But sets are not ordered abstract data structures. So there is no .sort() property available on them. To sort a Set in JavaScript, we need to convert it into an array first. Since arrays are sortable, we will then sort them, and...