I’m just trying to do something like that (when user select an item, then navigate to another component): Typically when we want to pass value between two component we use props : But in this case I have o idea how can I do it without invoked AirScreen Answer Just do something like this: You might want to read the
Tag: ecmascript-6
Best way of grouping array objects by multiple values in javascript.ES6
Good day developers Im wondering how I could group an array of objects of different values in specific sub-groups , where in each sub-group my contain objects with specific values according to the key queried. My array would be something like this And i would like to gather by the key make in a subgroup of name 2nd_class all objects
Node JS displaying value at index instead of indices
Written this 2sums code to get efficent O(N) Time complexity algorithm for below problem unfortunately saw value at array nums got displayed in the output ,whereas the need is to get the indices to be displayed in output What change needs to be done below Your help is appreciated Regards, Carolyn Answer As @jriend00 said, do not use for(… in
for..in in javascript yields different output than forEach and for loop?
I am surprised i have not faced this until today, but this costed me a whole day as I blindly believed my for…in will work as it should. Please help me understand why this happens with for…in ? Now i’m paranoid to use for…in. I have simplified the example so that we can just focus on the root cause. below
Can console.log()s called from two different Worker threads ever step on each other, or are they always one after the other?
I have this small piece of example code: And: Run like so: node main.js The output is this: Sometimes several console.log()’s from one thread are called before any are called by the other. This is expected, and fine. But is there any chance that a console.log() could be called in the middle of another console.log()? So for example, could this
Merge properties of objects within a array together using values and remove duplicate
I would like to know how to Merge properties of objects with in same array of objects if same value in javascript. My input data Expected Output: I tried below code Answer
Showing/hiding React components does not maintain internal state
I am trying to hide/show components in React based on some state. The main issue I am facing is to maintain the internal state of the components during hiding and showing. The below is the code that does what I expect and maintains the state of each of the components (Africa, Europe, America, Asia): However, I am not satisfied with
react JavaScript ternary conditional operation
After I import the data as json from the detail page, in ProductDetail > brand > shoes > size.length get the length length is outputting in JSX. But there is a problem. There are also products without shoes data for each detailed product on the detail page. I want to treat products without data as 0 instead of length as
How to log return value after async/await?
Below have I pasted in PoC code, where I have removed lots of lines, but it shows the problem/question I am facing. createPost() returns a “post number” in the ret variable. I don’t need the “post number for anything else than logging it. With the current implementation, I have to define ret outside of the while loop, and since sequential
Can ‘=’ be used to set one object property given a different unique key:value?
If I know an object exists in an array with a unique key:value pair do I have use .find() to get the object or is there a way that doesn’t require iteration? Given: Is there a notation to do: Or do I have to do: Answer To directly answer your question… Is there a notation to do The answer is