req.params contains route parameters (in the path portion of the URL), and req.query contains the URL query parameters (after the ? in the URL). You can also use req.param(name) to look up a parameter in both places (as well as req.body), but this method is now deprecated.
The error message is saying that there’s already a record with null as the email. In other words, you already have a user without an email address. The relevant documentation for this: If a document does not have a value for the indexed field in a unique index, the index will store a null value for this … Read more
The npm update –dd output says why at the end: …not updating @angular/common because it’s currently at the maximum version that matches its specified semver range Look at this specific package, angular/common. You have it set to 2.0.0, which means npm will always fetch that specific version. If you want the package to update, you need to use a semver … Read more
You got to add python to your PATH variable. One thing you can do is Edit your Path variable now and add ;%PYTHON%; Your variable PYTHON should point to the root directory of your python installation.
I assume you already know that MongoDB is a NoSQL database system which stores data in the form of BSON documents. Your question, however is about the packages for Node.js. In terms of Node.js, mongodb is the native driver for interacting with a mongodb instance and mongoose is an Object modeling tool for MongoDB. mongoose is built on top of the mongodb driver to provide programmers … Read more
The below command will list all your globally installed modules on Linux, Mac, and Windows.
Link globally installed package to your project: Checkout the official documentation of yarn link.
Assuming, var friend = { firstName: ‘Harry’, lastName: ‘Potter’ }; There are two options you have: Update the model in-memory, and save (plain javascript array.push): or I always try and go for the first option when possible, because it’ll respect more of the benefits that mongoose gives you (hooks, validation, etc.). However, if you are doing … Read more
The request object isn’t passed to the strategy callback by default, you need to set the passReqToCallback option for this: This is documented here.
Finally, I found a solution to this problem without reinstalling npm and I’m posting it because in future it will help someone, Most of the time this error occurs javascript heap went out of the memory. As the error says itself this is not a problem with npm. Only we have to do is instead … Read more