Goal. How do you run JavaScript script through the Terminal? For CPU-bound tasks child_process and webworkers will help. Writing code in comment? How to convert an existing callback to a promise in Node.js ? How to detect browser or tab closing in JavaScript ? By the way, in Node.js, there is another way to do setTimeout with 0 ms. How to execute setInterval function without delay for the first time in JavaScript ? Hi, So, I've been working on a certain project and this forum has been a great help in getting it done. Thank you. We saw how the event emmiter plays a huge part of the platform on multiple core modules that made up Node.js. In the beginning of the loop. I tried to use a delay node to send one message at a time but I keep loosing values the way I set it up. Since it is single threaded, most APIs provided […] Low event loop lag, High event loop idle. Experience. Open a URL in a new tab (and not a new window) using JavaScript, Get selected value in dropdown list using JavaScript. How to calculate the number of days between two dates in javascript? Node.js is single threaded. How to Open URL in New Tab using JavaScript ? function delay(){return new Promise(){ resolve => setTimeout(resolve, 3000)} Then we will write our asynchronous function using async-await and call it itemRunner. How to convert Set to Array in JavaScript? How to append HTML code to a div using JavaScript ? Difference between TypeScript and JavaScript. During the timers phase, you run callbacks for expired Interval and Timeout timers. code. Before the loop. How to delay a loop in JavaScript using async/await with Promise ? Create a promise-based alternative. Node.js event loop workflow & lifecycle in low level Paul Shan Mon Feb 19 2018 A year back while describing the differences between setImmediate & process.nextTick , I wrote a bit on the low level architecture of node’s event-loop. The event loop is what somehow organizing the callbacks or the responses of those events. Write Interview The for loop moves on to the next iteration right away; The setTimeout function is again queued immediately for future execution (after 3 seconds) … and so on, up to 10 times. The event loop is what allows Node.js to perform non-blocking I/O operations — despite the fact that JavaScript is single-threaded — by offloading operations to the system kernel whenever possible. The Node.js Event Loop, Timers, and process.nextTick() What is the Event Loop? How to change an element's class with JavaScript? An iterable is a JavaScript object returning a function that creates an iterator for its Symbol.iterator property.. Common iterables are arrays, typed arrays, maps, sets, and array-like objects (e.g., NodeLists).Strings are iterables as well, you can loop over each character. How to add an object to an array in JavaScript ? We can pass it to any forEach loop like so. First of all, programming should be fun. setTimeout() is a one-time timer that allows us to schedule code to be run after a certain period of time. How to set the default value for an HTML