Node.js Snippets
The Node.js snippet collection contains JavaScript utilities for Node.js 14.x. It includes helper functions related to server-side code and filesystem operations, while general-purpose helpers can be found in the JavaScript snippet collection.
Calculate SHA-256 hash (Node.js)
JavaScript, Node
Creates a hash for a value using the SHA-256 algorithm. Returns a promise.
Generate UUID (Node.js)
JavaScript, Node
Generates a UUID in Node.JS.
Stream is duplex
JavaScript, Node
Checks if the given argument is a duplex (readable and writable) stream.
Stream is writable
JavaScript, Node
Checks if the given argument is a writable stream.
Stream is readable
JavaScript, Node
Checks if the given argument is a readable stream.
Command-line arguments
JavaScript, Node
Gets the command-line arguments passed to a Node.js script.
Environment is browser
JavaScript, Browser
Determines if the current runtime environment is a browser so that front-end modules can run on the server (Node) without throwing errors.
JSON to file
JavaScript, Node
Writes a JSON object to a file.
Colorize text
JavaScript, Node
Adds special characters to text to print in color in the console (combined with
console.log()).Environment is Node.js
JavaScript, Node
Determines if the current runtime environment is Node.js.
Value is stream
JavaScript, Node
Checks if the given argument is a stream.
Read file lines
JavaScript, Node
Returns an array of lines from the specified file.
Encode string to Base64
JavaScript, Node
Creates a base-64 encoded ASCII string from a String object in which each character in the string is treated as a byte of binary data.
Check if process arguments contain flags
JavaScript, Node
Checks if the current process's arguments contain the specified flags.
Tip: Debugging Node.js using Chrome Developer Tools
JavaScript, Node
Did you know you can use Chrome Developer Tools to debug your Node.js code? Find out how in this short guide.