The first if statement if(command.name) checks, whether the property name of commands is empty or not. If it’s empty, it will **not execute the code inside the brackets and jump straight to the else block If not, it will execute the code inside the brackets The second line client.commands.set(command.name, command); calls the .set() function to … Read more
1. Alternative to Object Oriented programming In theory, anywhere you can use a class/constructor you can use a closure instead. They both essentially perform the same thing: encapsulate data and maintain state – but via different mechanisms. Objects maintain state using context (Java calls it “scope” but because Java does not actually have real scopes) … Read more
Line 1: You import the express node module that you installed with npm i express and store it in a constant (const). Line 2: You import the function or variable createReadStream from the file system module of node.js (fs module) and make it available for use in this file. Line 3 you assign the express() … Read more
client.post(/posts/${like.PostId}/likes, { userId: like.userId, PostId:like.PostId }) using this in frontend, i was able to access the req.body in backend, thank you @Anatoly solved How can users like and unlike each others post using sequelize postgres nodejs?
In today’s world, you pick an environment that contains the Javascript interpreter and then you can program, not only using what is built into the Javascript language, but also what other capabilities are built into that specific environment. In your case, the browser environment is where things like window and document come from. So, to … Read more
You have this error message because req.query.message is undefined. Check that the variable req.query.message exists and this should work. 2 solved err: TypeError: Cannot call method ‘replace’ of undefined [duplicate]
You can only use await inside a async function. Will not work: function notAsync () { await aPromise() } Will Work: async function isAsync() { await aPromise() } Example with arrow function const isAsync = async () => { await aPromise() } 2 solved Why not able to use await in Node.js? [duplicate]
It all starts from function start() at the bottom. For displaying purpose i’ve used a small dataset but you can require the data from the json file by using const data = require(‘data.json’). I’ve tested for large dataset also, works like a charm. Hope it helps. const data = { “United States”:[ “Washington”,”Bratislava”,”Hard”,”Going”], “Afghanistan”: [ … Read more
Classes are usually Capitalized, everything else is usually camelCased. solved Naming guidelines for JavaScript [closed]
How can the variable name be redefined? It isn’t. What’s with the left to right assignment? Doesn’t = work right to left? Yes, and that’s what’s happening here. That’s destructuring assignment. This one line: const {key1: value1, key2:value2} = name is the equivalent of this: const value1 = name.key1; const value2 = name.key2; You’re quite … Read more
There are simply too many questions here. I tried Electron Js to make application, but the problem is that, it takes extra memory in machine. While the memory consumption of electron application is usually larger than highly optimized native applications, it is comparable to running chrome standalone. So switching from electron to a node based … Read more
var questions = [ { number: ‘1’, text: ‘question_1’ }, { number: ‘2’, text: ‘question_2’ }, { number: ‘3’, text: ‘question_3’ }, ]; res.send(result, { questions: questions}); In the code above instead of initializing an empty array, I am assuming that I have a pre defined array of questions. In the res.send() part of the … Read more
There are syntax errors in your code, missing , and quotes for mode values, after fixing the errors, you can try the following, neu array’s id properties are arrays and o here refers to the original array. var neu = [], l = o.length; for (var i = 0; i < l; i++) { var … Read more
Yes, you need to export mySingleton by assigning it to module.exports. You also have a syntax error in your code (one of your braces is in the wrong place). Fixing those two things, you get: var mySingleton = (function() { var instance; function init() { var privateRandomNumber = Math.random(); return { getRandomNumber : function() { … Read more
You should exclude your api written in Laravel from CSRF Protection check middleware by default VerifyCsrfToken middleware is applied to route group web so here you are having two options :- Create a new middleware group named apicode snippet for creating a middlewareroutes.php Route::group([‘prefix’ => ‘api/v1′,’middleware’ => [‘api’]], function () { Route::get(‘/hotel/list’,[ ‘uses’ => ‘YourController@function’ … Read more