In most use cases, you don’t want to miss bug fixes since they often include important security patches. To allow an npm dependency to update to the latest PATCH version, you can prefix the dependency’s version with the tilde (~) character. Link to challenge : https://www.freecodecamp.org/learn/apis-and-microservices/managing-packages-with-npm/use-the-tilde-character-to-always-use-the-latest-patch-version-of-a-dependency Written Guide : https://www.notion.so/ganeshh123/Use-the-Tilde-Character-to-Always-Use-the-Latest-Patch-Version-of-a-Dependency-7942e8c8890949588c46badeb2e04d71 Full Playlist for this course : https://www.youtube.com/playlist?list=PLhGp6N0DI_1RO7qDtCW9Cn9FyRJ1Dk6xk All Writen Guides for this course : https://www.notion.so/ganeshh123/4d5e59dbe72940aeb68fe6f38ebf28e1 All My Tutorials can be found at : https://www.notion.so/Tutorials-Ganesh-H-293ea420d34a464f9a1907e0405b5f26 Concepts: Tilde Ranges Allows patch-level changes if a minor version is specified on the comparator. Allows minor-level changes if not. https://docs.npmjs.com/misc/semver#tilde-ranges-123-12-1 Semantic Versioning Given a version number MAJOR.MINOR.PATCH, increment the: - MAJOR version when you make incompatible API changes, - MINOR version when you add functionality in a backwards compatible manner, and - PATCH version when you make backwards compatible bug fixes. https://semver.org/ package.json All npm packages contain a file, usually in the project root, called package.json - this file holds various metadata relevant to the project. This file is used to give information to npm that allows it to identify the project as well as handle the project's dependencies. It can also contain other metadata such as a project description, the version of the project in a particular distribution, license information, even configuration data - all of which can be vital to both npm and to the end users of the package. The package.json file is normally located at the root directory of a Node.js project. https://nodejs.org/en/knowledge/getting-started/npm/what-is-the-file-package-json/ -————————————————————————————————————- The Node Package Manager (npm) is a command-line tool used by developers to share and control modules (or packages) of JavaScript code written for use with Node.js. freeCodeCamp (also referred to as “Free Code Camp”) is a non-profit organization that consists of an interactive learning web platform, an online community forum, chat rooms, online publications and local organizations that intend to make learning web development accessible to anyone. Beginning with tutorials that introduce students to HTML, CSS and JavaScript, students progress to project assignments that they compl ... https://www.youtube.com/watch?v=XAo2BTPzFow

We're gonna invert the bar chart so that the bars grow upwards. We need to change the way that the y coordinate is calculated to do this. Link to challenge : https://www.freecodecamp.org/learn/data-visualization/data-visualization-with-d3/invert-svg-elements Concepts: selection.attr(name[, value]) If a value is specified, sets the attribute with the specified name to the specified value on the selected elements and returns this selection. If the value is a constant, all elements are given the same attribute value; otherwise, if the value is a function, it is evaluated for each selected element, in order, being passed the current datum (d), the current index (i), and the current group (nodes), with this as the current DOM element (nodes[i]). The function’s return value is then used to set each element’s attribute. A null value will remove the specified attribute. If a value is not specified, returns the current value of the specified attribute for the first (non-null) element in the selection. This is generally useful only if you know that the selection contains exactly one element. https://github.com/d3/d3-selection/blob/v1.4.1/README.md#selection_attr -————————————————————————————————————- D3.js (also known as D3, short for Data-Driven Documents) is a JavaScript library for producing dynamic, interactive data visualizations in web browsers. It makes use of Scalable Vector Graphics (SVG), HTML5, and Cascading Style Sheets (CSS) standards. freeCodeCamp (also referred to as “Free Code Camp”) is a non-profit organization that consists of an interactive learning web platform, an online community forum, chat rooms, online publications and local organizations that intend to make learning web development accessible to anyone. Beginning with tutorials that introduce students to HTML, CSS and JavaScript, students progress to project assignments that they complete either alone or in pairs. Upon completion of all project tasks, students are partnered with other nonprofits to build web applications, giving the students practical development experience. Thanks for Watching ... https://www.youtube.com/watch?v=UUuIfjA_46U

We look at the package.json file in a bit more detail. We then add some author information with the 'author' field in that file. Link to challenge : https://www.freecodecamp.org/learn/apis-and-microservices/managing-packages-with-npm/how-to-use-package.json-the-core-of-any-node.js-project-or-npm-package Written Guide : https://www.notion.so/ganeshh123/How-to-Use-package-json-the-Core-of-Any-Node-js-Project-or-npm-Package-d80c2c4a702b469ebfc6cece36f8c6ef Full Playlist for this course : https://www.youtube.com/playlist?list=PLhGp6N0DI_1RO7qDtCW9Cn9FyRJ1Dk6xk All Writen Guides for this course : https://www.notion.so/ganeshh123/4d5e59dbe72940aeb68fe6f38ebf28e1 All My Tutorials can be found at : https://www.notion.so/Tutorials-Ganesh-H-293ea420d34a464f9a1907e0405b5f26 Concepts: author The “author” is one person. “contributors” is an array of people. A “person” is an object with a “name” field and optionally “url” and “email”, like this: https://docs.npmjs.com/files/package.json#people-fields-author-contributors npm npm is a package manager for the JavaScript programming language. It is the default package manager for the JavaScript runtime environment Node.js. It consists of a command line client, also called npm, and an online database of public and paid-for private packages, called the npm registry. https://www.npmjs.com/ package.json All npm packages contain a file, usually in the project root, called package.json - this file holds various metadata relevant to the project. This file is used to give information to npm that allows it to identify the project as well as handle the project's dependencies. It can also contain other metadata such as a project description, the version of the project in a particular distribution, license information, even configuration data - all of which can be vital to both npm and to the end users of the package. The package.json file is normally located at the root directory of a Node.js project. https://nodejs.org/en/knowledge/getting-started/npm/what-is-the-file-package-json/ node_modules Packages are dropped into the node_modules folder under the prefix. When installing locally, this means that you can require("packagename") to load its main module, or require("packagename/lib/path/to/sub/module") to load other modules. https://docs.npmjs.com/configuring-npm/folders.html#node-modules -————————————————————————————————————- The Node Package Manager (npm) is a command-line tool used by developers to share and control modules (or packages) of JavaScript code written for use with Node.js. freeCodeCamp (also referred to as “Free Code Camp”) is a non-profit organization that consists of an interactive learning web platfor ... https://www.youtube.com/watch?v=J3OiuM7GVjQ

Serializaton and Deserialization allow us to reduce our User objects into a small piece of information which we can efficiently store into a cookie. Link to Challenge : https://www.freecodecamp.org/learn/quality-assurance/advanced-node-and-express/serialization-of-a-user-object Written Guide: https://www.notion.so/ganeshh123/Serialization-of-a-User-Object-945e3c57bc144e07a96fca87f6230ce1 Full Playlist for this course : https://www.youtube.com/playlist?list=PLhGp6N0DI_1RL9djhgSH65pZhJ6xSyKX8 All Writen Guides for this course : https://www.notion.so/ganeshh123/ccf6039186334f83a54c1c9216f30e3c All My Tutorials can be found at : https://www.notion.so/Tutorials-Ganesh-H-293ea420d34a464f9a1907e0405b5f26 00:00 - Introduction 00:30 - MongoDB Installation 01:10 - Serialize Function - passport.serializeUser() Passport will call this to serialize the user to the session whenever you login a user with req.login(), or whenever a user is authenticated via passport.authenticate(). The function you pass in should call done(null, serializedUser). What this is going to do is set req.session.passport.user = serializedUser. https://github.com/jwalton/passport-api-docs#passportserializeuserfnuser-done--fnreq-user-done 04:06 - Deserialize Function - passport.deserializeUser() Passport will call this to deserialize the user from the session. Should call done(null, user). The serializedUser is req.session.passport.user. https://github.com/jwalton/passport-api-docs#passportdeserializeuserfnserializeduser-done--fnreq-serializeduser-done 05:05 - Getting the User Document from the database - db.collection.findOne() Returns one document that satisfies the specified query criteria on the collection or view. If multiple documents satisfy the query, this method returns the first document according to the natural order which reflects the order of documents on the disk. https://docs.mongodb.com/manual/reference/method/db.collection.findOne/ 09:02 - Challenge Solution -————————————————————————————————————- Node.js is an open-source, cross-platform, JavaScript runtime environment that executes JavaScript code outside a web browser. Node.js lets developers use JavaScript to write command line tools and for server-side scripting—running scripts server-side to produce dynamic web page content before the page is sent to the user's web browser. Express.js, or simply Express, is a web application framework for Node.js. It is designed for building web applications and APIs. It has been called the de facto standard server framework for Node.js. Express runs between the server created by Node.js and the frontend pages of a web application. Express also handles an application's routing. freeCodeCamp (also referred t ... https://www.youtube.com/watch?v=gYqR-pf1EGQ