NodeJS is one of the important framework in MEAN stack. NodeJS is used to program server side part of applications. In this article, we present a set of NodeJS interview questions that could be helpful during interview process. The interview questions are divided into three categories based on...
Node.js Interviewelemefe.github.io/node-interview/#/sections/zh-cn/common?id=%E7%B1%BB%E5%9E%8B%E5%88%A4%E6%96%AD 此文就是用来解答上述所问的第一篇类型判断. 为什么需要去考察JS的类型判断? 前置知识: JS数据类型分为两大类: - 基本数据类型: Number,String,Boolean,Undefined,Null,Symbol -...
9. Explain the concept of “middleware” in Node JS."Middleware" in Node JS refers to functions executed in the middle of a request to a response cycle in the Node JS framework. These functions have access to the request object (req), the response object (res), and the next function ...
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it is not very suitable. In a large number of requests, these classes are frequently created and destroyed, causing memory jitter. Using the object pool mechanism, such objects that frequently need to be created and destroyed are stored in an object pool, so as to avoid re-reading initializat...
参考答案: 主要有两种方式,第一种是利用node内置的require('data.json')机制,直接得到js对象; 第二种是读入文件入内容,然后用JSON.parse(content)转换成js对象.二者的区别是require机制情况下,如果多个模块都加载了同一个json文件,那么其中一个改变了js对象,其它跟着改变,这是由node模块的缓存机制造成的,只有一个...
And a couple of side points here that can sometimes trip someone up in answering this question: Passing an array to the push() method of another array pushes that entire array as a single element onto the end of the array. As a result, the statement arr2.push(arr3); adds arr3 in ...
Node.js 是一个基于 Chrome V8 引擎的 JavaScript 运行时 上传者:qxmjava时间:2023-04-08 node-v18.14.0-darwin-arm64.tar.gz Node.js 是一个基于 Chrome V8 引擎的 JavaScript 运行时 上传者:qxmjava时间:2023-02-15 node-v18.14.1-darwin-x64.tar.gz ...
Clarke’s awesome list of typical JSinterview questions. Hopefully, you will finish the article with more than just an answer to the question. Each article will leave you with a new understanding, or a brush-up from your past learnings, that will help in all of your interactions with ...
Here's a basic HTTP service using Node.js: const express = require('express'); const app = express(); const bodyParser = require('body-parser'); app.use(bodyParser.json()); app.post('/users', (req, res) => { const user = req.body; // Implement user registration logic here an...