What is setImmediate?
The setImmediate function is used to execute a function right after the current event loop finishes. In simple terms, the function functionToExecute is called after all the statements in the script are executed. It is the same as calling the setTimeout function with zero delays.
What is an EventEmitter?
An event emitter is a pattern that listens to a named event, fires a callback, then emits that event with a value. Sometimes this is referred to as a “pub/sub” model, or listener. It’s referring to the same thing.
What is node process?
Node. js provides the facility to get process information such as process id, architecture, platform, version, release, uptime, upu usage etc. It can also be used to kill process, set uid, set groups, unmask etc. The process is a global object, an instance of EventEmitter, can be accessed from anywhere.
What is process uptime?
The process. uptime() method is an inbuilt application programming interface of the process module which is used to get the number of seconds the Node. js process is running. Syntax: process.
What is event loop NodeJS?
An event loop is an event-listener which functions inside the NodeJS environment and is always ready to listen, process, and output for an event. An event can be anything from a mouse click to a keypress or a timeout.
What is child process in NodeJS?
Usually, Node. js allows single-threaded, non-blocking performance but running a single thread in a CPU cannot handle increasing workload hence the child_process module can be used to spawn child processes. The child processes communicate with each other using a built-in messaging system.
What is emit solidity?
An event is emitted, it stores the arguments passed in transaction logs. These logs are stored on blockchain and are accessible using address of the contract till the contract is present on the blockchain. An event generated is not accessible from within contracts, not even the one which have created and emitted them.
How do I emit an event at Vue?
The way to do this is for input-name to $emit() an event called ‘update’ when the user clicks the ‘Update’ button, with the new name. Vue. component(‘input-name’, { data: () => ({ name: ‘World’ }), // When you click the “Update” button, Vue will emit an event `update` // to the parent, with the current state of ‘name’.
What is path join?
The path. join() method joins the specified path segments into one path. You can specify as many path segments as you like. The specified path segments must be strings, separated by comma.
What is the purpose of process object?
The process object provides the standard input/output (stdio) streams stdin, stdout and stderr (as in C/C++) as in the following: stdin: a readable stream for reading input from the user. stdout: a writable stream, either synchronously or asynchronously.
What is process JavaScript?
The process object in Node. js is a global object that can be accessed inside any module without requiring it. There are very few global objects or properties provided in Node. js and process is one of them. It is an essential component in the Node.
What is a process object?
The process object is the global object in Node. It can be accessed from anywhere; it is an instance of EventEmitter. Each Node. js has a set of built-in functionality, accessible through the global process object.