When working with React, developers often come across the need to render lists of items efficiently. Every item in a list needs to have a key prop assigned to it. It is essential for enabling React to track changes made to these items. Using array indexes as these keys is...
After working on a project for a while, there will come a time when we will end up with a lot of local branches that have been merged on remote but still exist on our local machine. To delete git branches that do not exist on remote, we can perform...
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...
![JSON.parse(): Fixing ‘SyntaxError: “[object Object]” is not valid JSON’](https://www.wisdomgeek.com/wp-content/uploads/2023/10/Screenshot-2023-10-22-at-6.09.59 PM-520x293.png)
SyntaxError: “[object Object]” is not valid JSON: usually happens when the value being passed to JSON.parse is not a string value. Let’s see how we can fix it. Scenario 1: The value is already an object Since the value being passed to JSON.parse is already an object, we don’t need...
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...
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...
I recently ran into the “node: –openssl-legacy-provider is not allowed in node_options” error while working with Node 17. It occurs when the NODE_OPTIONS environment variable is set with the value –openssl-legacy-provider. I had set that value for another project I tried recently, which conflicted with this project. Fixing the “node:...
I recently was working with a third-party library. I ran into the error “Uncaught SyntaxError: cannot use import statement outside a module” when I tried to import a function from the package. Let us look into why it occurred and how I fixed it. Why is this happening? The error...
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