javascript是单线程的 提起javascript,在我上大学的时候,有一门叫做网页制作基础,老师说得很浅显,那时候初识这门语言,至于问什么会做了web开发呢,原因很简单,我很喜欢各种酷炫的交互效果(真实原因是真学渣,java,c,c++都开过课,但是都没学);说起javascript是单线程的,想起了我大学老师上的一门操作系统,考试有一道...
To think of it, it is amazing of how long you can keeping going and call yourself a good Javascript engineer without knowing about the Event Loop and rightfully so. In fact heaps of Javascript engineers I know these days who are good at coding ReactJS, have no idea what the event loop ...
A callback function in JavaScript is a function that is passed as an argument to another function and is invoked after some kind of event.
Here is a for loop:const list = ['a', 'b', 'c'] for (let i = 0; i < list.length; i++) { }We can break at any point in time the execution using the break keyword:const list = ['a', 'b', 'c'] for (let i = 0; i < list.length; i++) { if (list[i] ===...
q: What is an Event Loop in Node.js? ans: - The Event Loop is a mechanism that handles asynchronous callbacks in Node.js, ensuring non-blocking I/O operations. q: Differentiate between process.nextTick() and setImmediate()? ans: - process.nextTick() postpones the execution of a call...
JavaScript is object-oriented. It’s a little weird in this way, though; there are objects, but no classes. So many “classical” object-oriented programmers often find it somewhat deficient, or would say it isn’t actually object-oriented at all. But it is. ...
Node.js is an open-source JavaScript runtime environment that allows developers to execute JavaScript code for server-side scripting and scalable network applications.
This is a concept in the interface of ts. The interface of ts is "duck typing" or "structural subtyping", and type checking mainly focuses on the shape that values have. So let's get acquainted with the interface first, and then elicit the explanation of ?. ...
A well-structured program is one of the essential characteristics of good programming practice. It demands that the bigger tasks should be broken into multiple sub-components so that low coupling can be ensured. Hence, programs should be developed as a collection of modular blocks...
The event loop is a fundamental part of the JavaScript runtime environment. It allows you to execute asynchronous operations, such as network requests, in the background without blocking the main single thread. The event loop constantly checks for new events or tasks in a queue and executes the...