I have the following code: const utility = { data: ‘test’, foo() { console.log(‘foo’) return this } } const main = { bar() { console.log(‘bar’) return this } } const schema = Object.assign(utility, main) schema.bar().foo() console.log(schema.data) Everything works perfectly in execution, the problem is that I am trying to build a form validation library and ..
Category : typescript
My goal for the project portion is to be able to have a functioning login and register page using TypeScript. Currently my code works without a database, but I wanted to use Firebase to save user’s usernames and passwords, so they can login with ease. The only tutorial I have found only use Firebase with ..
I’m working with Nodejs/NestJs and now I’m trying to generate a xlsx file (in this point I’m not sure if my code is right) and now I want to send this file on response but I don’t know how to perform it. I read about @Res decorator but I don’t resources to attach a file ..
I am trying to set up some typescript aliases to optimize my imports without using babel or webpack on a node.js project. my current tsconfig.json: { "compilerOptions": { "baseUrl": ".", "target": "es6", "module": "CommonJS", "moduleResolution": "node", "allowJs": false, "esModuleInterop": true, "noImplicitAny": true, "resolveJsonModule": true, "outDir": "./build", "strict": true, "emitDecoratorMetadata": true, "experimentalDecorators": true, "typeRoots": [ "node_modules/@types", ..
i have added code to add client to mongodb collection however http://localhost:9001/saveClients returning the bad request error 400, any idea what could possibly implemented wrong here ? console.log("CLIENTS POST >>>>>", req.body); printing empty object controller.ts public static async save (req: Request, res: Response): Promise<any> { try { console.log("CLIENTS POST >>>>>", req.body); const clientData = req.body; ..
So I’m trying to figure out how to compare two dates in Typescript. I have the user inputted date: const oldestDateString = this.address[0].since + ‘-01′; const oldestDate = new Date(oldestDateString); And the date that’s three years in the past (36 months): const threeYearsAgo = new Date().setMonth(new Date().getMonth() – 36); So I go to compare these ..
Part 2 of wanting to absolutely die while learning React/TS. So I’m in some code that looks like this. Basically I’ve tried in 3 different ways to set a variable. Closure. It doesn’t work. This is really a remarkable feat of engineering to break JS basics like this. Literally every single line of code is ..
I don’t understand TypeScript’s article on Alternative Pattern for mixins. I see that when I execute the code as they have on the website, I get the methods mixed in, but I don’t get properties. e.g. this example I added the property z = 1; to Jumpable, create my class, and console.log z, but the ..
I want to create a Typescript Type for an array of objects. In this array of objects, I require only one object to have a property set to true. You can probably solve it just with this typescript example, but I will provide a long and detailed explanation. Let’s say I want to recreate a ..
I aksed one question on stackoverflow and link is as follows: Storing data in an array on the basis of a flag I got one solution mentioned in comment and it is working fine for me. But there is a little change in my data and want to update on the condition mentioned in above ..
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