What does & mean in typescript? What is the difference between interface and type? What does enum mean as a type? What does the declare module '*.scss' of xxx.d.ts in the project mean?declare moduleWhat else can cfdefb7 do? How does typescript constrain the type of Promise? How to...
It could mean a tech company, a jewel, an app, among others. Also, the search term may deliberately have multiple intents. So for certain keywords, the search results comprise different themes. What should you do in these instances? Pick one of the main themes — possibly the one that ...
asyncfunctionmyAsyncFunc(){return0;}functionmyPromiseFunc(){returnPromise.resolve(0);} That is whatasynckeyword does. That’sallit does. 💡asyncwraps the return value into a promise. Now let’s talk aboutawait. What doesawaitreally mean? If we have a function returning a Promise like this...
A Promise is a better way to handle the following scenario: "I want to find an user in this database, but the find method is asynchronous." So, here we have a find method which doesn't immediately return a value. But it does eventually "return" a value (by the means of a callbac...
See the second paragraph in the "more to come" section. One a side note, does anyone know how to paste text in these forums? It's really frustrating to read such vague statements. What are "modern techniques"? Does this mean, that we should still use JSLink, Custom Actions, Custom ...
Let’s look at a Promise-based function fetchJson() and how it can be improved via generators.function fetchJson(url) { return fetch(url) .then(request => request.text()) .then(text => { return JSON.parse(text); }) .catch(error => { console.log(`ERROR: ${error.stack}`); })...
Now let’s imagine the same scenario in the offline world. If you kept asking someone to do something for you,the least you could do is say thanks, if not return the favor. It’s simple. The best thing is, it’s not so difficult to do it online either. All you have to do is ...
What does "object destructuring" mean and what is the result of a destructuring operation?Say you have an object with some properties:const person = { firstName: 'Tom', lastName: 'Cruise', actor: true, age: 57 }You can extract just some of the object properties and put them into ...
What does the PROMISE trial mean for cardiac CT? Outcome of coronary CT angiography vs functional testing in suspected coronary artery disease J Cardiovasc Comput Tomogr (2015) S.N. Goodman Toward evidence-based medical statistics. 1: The P value fallacy Ann Intern Med (1999) ...
Do you know what it does? Why is super used? What result will this expression have? What will this function return? What will the result of this expression be? What value will this expression return? What is a Promise()? What will this function return? What value will this...