coding-challenge | coding challenge , you will develop tools | Runtime Evironment library
kandi X-RAY | coding-challenge Summary
kandi X-RAY | coding-challenge Summary
For this coding challenge, you will develop tools that could help analyze Venmo’s dataset. Some of the challenges here mimic real world problems. [Back to Table of Contents] (README.md#table-of-contents).
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QUESTION
I'm learning Vue 3 with Vuex 4 and I'm stucked with something that I'm pretty sure it's simple but I can't see.
In few words, i'm trying to set some data in state to have it available to use it in my components but it isn't working.
Let me show you the code:
/// store.js
...ANSWER
Answered 2021-Mar-28 at 20:16You've to dispatch that actions inside mounted hook :
QUESTION
Hi I was looking up solutions to a leetcode problem, I know how to solve the problem but someone else submitted this solution and I don't understand how this works.
The question is how many number of stacks can you form with n number of coins where k-th row has k number of coins. https://leetcode.com/explore/challenge/card/july-leetcoding-challenge/544/week-1-july-1st-july-7th/3377/
Returning the above formula works, can anyone explain it to me?
...ANSWER
Answered 2020-Jul-15 at 20:19The sum of the first N natural numbers (1 + 2 + 3 + ... + N) is known to be equal to N(N+1)2
The game says that if you have 6 coins you have to stack them in this way:
QUESTION
I want to get the data.json file, parse into an object, and make it an iterable. (Don't change the object data type into an array) Make it an iterable using
- Iterators 2. Generators When that object is passed inside a FOR OF loop, I should get the output of each item as the following pattern. Post Id: 1 Title: Some title Post Id: 2 Title: Some other title And so on … This is the link for the json file[https://raw.githubusercontent.com/attainu/curriculum-master-fullstack/master/coding-challenges/deep-dive/iterators-data.json?token=AOGF265VMPYWFKXO6RNGXPS67WAMM][1]
ANSWER
Answered 2020-Jun-25 at 19:41I have tried this with fetch. You can make changes.
Did little digging. came up with this. You will have to define your own iterator. Is this what you wanted ?
QUESTION
I am getting the error Insufficient number of arguments or no entry found.
Alternatively, run 'webpack(-cli) --help' for usage info. when I run the command npm run dev I also receive an error under this one that says ERROR in Entry module not found: Error: Can't resolve followed by a path. I am not too sure why it can't find an entry point any help would be greatly appreciated.
uploaded the whole project to github to help with visibilty. https://github.com/dustinm94/coding-challenge
webpack.config.js
...ANSWER
Answered 2019-Mar-31 at 18:20webpack.config.js and package.json will always be in your project basepath and
node commands should be triggered from this path
You must make below corrections in your webpack.config.js & package.json
--watch will automatically look for the file specified in entry object in webpack.config.js and keep watching its dependency graph to autoreload on detecting changes. You need to update your package.json with below details
QUESTION
Let us suppose we have a class like below :-
...ANSWER
Answered 2020-Apr-28 at 20:37There is only one way to "set dictionary value to null" -
QUESTION
I am new to recursion and trees. I am having trouble figuring out the diameter of a binary tree. My solution is off by 1 and I can't figure out where I am going wrong. I have taken a look at a similar question here: Finding Diameter of a Tree but I am not able to understand if it is indeed the same problem. The answer for the figure below has a diameter of 8 (longest path between two nodes). However I am getting 7. Any help or advice is appreciated. Thanks in advance.
The questions can be found here: https://leetcode.com/explore/challenge/card/30-day-leetcoding-challenge/529/week-2/3293/
I am failing just 4 of the 106 test cases.
...ANSWER
Answered 2020-Apr-20 at 01:19distance of between -4 (child of 6) and -2 (child of 9) is 8. But for finding dimeter tree we can run bfs search from one node(any node) and then run bfs again from longest node that we find in first bfs and greatest number distance is our diameter tree. and order of this algorithm is o(n+m). Hope this helps
QUESTION
I am trying to use React.lazy for code splitting in my TypeScript React app.
All I am doing is changing that line:
...ANSWER
Answered 2019-Jan-15 at 09:31You should do export default class {...} from the ./screens/Products/list instead of export class ScreensProductList {...}.
Or, alternatively, you can do:
QUESTION
I sending an AJAX request and I'm getting a JSON object as a response. I am trying to put the data in the JSON object into a table using the DOM API. Currently it is not working at all.
Can someone help me out with the logic of creating a table with DOM in this way? The wrong code I have tried writing is here:
...ANSWER
Answered 2019-Dec-21 at 07:02The main issue here is that your code seems to expect the network request to be synchronous (ie, that fulldata is populated after the xhttp.send() function call has been issued).
In order for your code to work as required, you should instead build the table "inside" of the onreadystatechange function handler (ie at the point when fulldata is populated). One approach to this would be as follows:
QUESTION
I am doing a Hackerrank challenge 'Manasa and Stones'
I have already done an Looping solution but it took to much time solving tree levels and I need a recursive solution I guess.
...ANSWER
Answered 2019-Jun-26 at 00:27arr = arr.join(arr2) is not doing what you think it does--the .join method joins the elements in an array into a string delimited by the parameter. When you pass this string arr into the recursive function call, you'll get a crash on the next stack frame, because strings don't have a map function.
You probably meant .concat, which puts the elements from the parameter array on the back of the instance array. Here's a snippet to illustrate what's going on.
QUESTION
I am following this tutorial on named tuple with specification of variable types. However, I modified the code (below), and even if I enter values of wrong types, there was no error message or programming break as a result. I understand you can write your own try/except to raise error exception, but is there a readily-available solution/syntax to enforce users entering the right type of variables.
...ANSWER
Answered 2018-Dec-05 at 22:37The type hints in python will not be evaluated by python itself! See PEP484
While these annotations are available at runtime through the usual annotations attribute, no type checking happens at runtime. Instead, the proposal assumes the existence of a separate off-line type checker which users can run over their source code voluntarily.
There are at least two projects which offer offline type checking (mypy and pyre). You should definitely use them if you are using type hints in your project.
If you want to validate the input while running the application, you have to either convince the offline type checkers by validating the data by yourself or use a third-party library. I know of attrs, where you can use validators or type annotations for online validation.
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