February 11, 2020

Typescript delay with async/await

2 Comments

Sometimes it is necessary in JavaScript to delay/sleep a program for a certain time. Therefore we can generate this behavior ourselves using a small helper function, thanks to the asynchronous nature of javascript. For example:

function sleep(ms: number) {
    return new Promise(resolve =&gt;; setTimeout(resolve, ms));
}

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function sleep(ms: number) {

return new Promise(resolve =>; setTimeout(resolve, ms));

}

With this we can delay the program flow for a certain time in the following function

async function delayExample() {
  //Say Hello
  console.log('Hello');
  // Say World after 2000 milliseconds
  await sleep(2000);
  console.log("World");
}

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async function delayExample() {

//Say Hello

console.log('Hello');

// Say World after 2000 milliseconds

await sleep(2000);

console.log("World");

}

But it […]
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theCodeCampus
Developer at thecodecampus </>

September 4, 2019

Jenkins vs. Gitlab CI

Comment

With Gitlab CI going full steem ahead following their proclaimed vision, we want to have a look on it ourselves! Mostly working with the proven and beloved open source CI tool Jenkins, we are wondering, will Gitlab give us some new features and benefits or will it not be able to replace Jenkins as the […]
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Janik Kessler
Developer at thecodecampus </>

August 15, 2019

Angular ViewChild – static property in ng8

3 Comments

Some of you might have stumbled upon an unexpected error message, while updating your project from ng7 to ng8. We all know that. Everything runs smoothly and we use the last 10 minutes before heading off for the update. Not a major issue. Already having packed your stuff and ready to head home, you get […]
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Janik Kessler
Developer at thecodecampus </>

June 12, 2019

Pitfall using Object.keys() with Typescript classes

Comment

In this blog article I would like to describe a stumbling block I stumbled across in my work. TypeScript (TS) is a very good way to increase productivity. The compiler and type system fix many software bugs before they occur. Also the possibility to translate into different versions of ECMAScript (ES) is a useful feature […]
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Sascha Engmann
Developer at thecodecampus </>

February 23, 2018

Creating a CORS Middleware in nest.js

4 Comments

Nest.js is a great framework for writing REST-API’s using Node.js. It features Angular’s dependency injection, an complete TypeScript integration and helps you with structuring your code. A common issue when working with REST-API’s is Cross-Origin-Request-Sharing (CORS), which keeps your Angular client from requesting resources which are located on another domain. Let’s pretend, for instance your […]
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theCodeCampus
Developer at thecodecampus </>