Next, in this compilation of top Node.js interview questions, let’s check out the intermediate category of questions. 30. What are streams in Node.js? Streams are a set of data entities in Node.js. These can be considered similar to the working of strings and array objects. Streams are...
Here’s a few quick type-checkers React has for JavaScript’s built-in types: React.PropTypes.array, React.PropTypes.bool, React.PropTypes.func, React.PropTypes.number, React.PropTypes.object, React.PropTypes.string, React.PropTypes.symbol, We can also test that props are React and DOM types:...
Powerful, extensible, and feature-packed frontend toolkit. Build and customize with Sass, utilize prebuilt grid system and components, and bring projects to life with powerful JavaScript plugins.
This is a collection of the concepts I have encountered throughout my career's path and the questions I have asked about them. Some questions might seem redundant but the purpose of this is to investigate, where present, the connections between different concepts that make this language so inte...
PropTypes.array PropTypes.object PropTypes.func PropTypes.node PropTypes.element PropTypes.bool PropTypes.symbol PropTypes.any We can define propTypes for User component as below: import React from 'react' import PropTypes from 'prop-types' class User extends React.Component { static propTypes = { nam...
git config --global user.name userName git config --global user.email userEmail 分支3 标签250 Frazer Smithci: pin github actions to commit-hash704a9b42个月前 6118 次提交 提交 .github/workflows ci: pin github actions to commit-hash
{ // docs is an array containing documents Mars, Earth, Jupiter // If no document is found, docs is equal to [] }); // Finding all planets whose name contain the substring 'ar' using a regular expression db.find({ planet: /ar/ }, function (err, docs) { // docs contains Mars...
you can use therunScripts: "outside-only"option, which enables fresh copies of all the JavaScript spec-provided globals to be installed onwindow. This includes things likewindow.Array,window.Promise, etc. It also, notably, includeswindow.eval, which allows running scripts, but with the jsdomwi...
A few minor details have been skimmed over here. There are still some subtle ways the two objects can âaffectâ each other even after copying, such as if they both share a reference to a common object (such as an array). ...
If you want to pass an array of elements, pass them as a property of the object, { elements: list }, then access them via elements variable in Pug. For other fields and variables, pass them as a property directly and access via the name. There is no need to wrap or write any spec...