backer | wip distributed backup / file mirroring tool | Incremental Backup library
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wip distributed backup / file mirroring tool.
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Copyimport 'core-js/actual'; // <- at the top of your entry point
Array.from(new Set([1, 2, 3, 2, 1])); // => [1, 2, 3]
[1, 2, 3, 4, 5].group(it => it % 2); // => { 1: [1, 3, 5], 0: [2, 4] }
Promise.resolve(42).then(x => The system has many projects.
A project has exactly one owner.
A project has exactly one product.
A product has exactly one price.
A product has zero or more orders.
An order has exactly one backer.
A backer may have many orders.
An order Community Discussions
Trending Discussions on backer
QUESTION
I have a paragraph that contains details like date and comments that I need to extract and make a separate column. The paragraph is in a column from which I am extracting the date is as follows:
'Story\nFAQ\nUpdates 2\nComments 35\nby Antaio Inc\nMar 11, 2019 • 3:26AM\n2 years ago\nThank you all for an amazing start!\nHi all,\nWe just want to thank you all for an awesome start! This is our first ever Indiegogo campaign and we are very grateful for your support that helped us achieve a successful campaign.\nIn the next little while, we will be dedicating our effort on production and shipping of the awesome A-Buds and A-Buds SE. We plan to ship them to you as promised in the coming month.\nWe will send out more updates as we are approaching the key production dates.\nStay tuned!\nBest regards,\nAntaio Team\nby Antaio Inc\nJan 31, 2019 • 5:15AM\nover 2 years ago\nPre-Production Update\nDear all,\nWe want to take this opportunity to thank all of you for being our early backers. You guys rock! :)\nAs you may have noticed, the A-Buds are already in production stage, which means we have already completed all development and testing, and are now working on pre-production. Not only will you receive fully tested and certified awesome A-Buds after the campaign, we are also giving you the promise to deliver them on time! We are truly excited to have these awesome true Bluetooth 5.0 earbuds in your hands. We are sure you will love them!\nSo here is a quick sneak peek:\nMore to come. Stay tuned! :)\nFrom: Antaio Team\nRead More'
This kind of paragraph is present in each row of the dataset in a particular column called 'Project_Updates_Description'. I am trying to extract the first date in each entry
The code I'm using so far is:
...ANSWER
Answered 2021-May-22 at 14:14Assuming you have a dataframe with a column entitled 'Project_Updates_Description' which contains the example text and you want to extract the first date and generate a datetime stamp from this information you can do the following:
QUESTION
I understand that smart contracts are converted into bytecode and stored on a block in the blockchain. Smart contracts could be used similarly to Kickstarter. A project team might set a funding goal that would only be paid out if backers donate enough money to meet the goal.
But how does the the smart contract know when to pay the project team? A block's hash changes wildly depending on its data. So, keeping track of the amount of donations and transaction IDs inside a block should not be possible because it would change the block's hash. Therefore, how does the smart contract know how much money has been funded, and how does it remember where to donations the money to if the funding goal is not met?
Is it true that there is a ledger (or blockchain) and also a state database? If so, I'm assuming that we store values associated with a smart contract on the state database.
...ANSWER
Answered 2021-May-18 at 13:14Bytecode of a smart contract is published in a transaction (that is mined in a block), and then stored in a storage of the network (usually Ethereum or Binance Smart Chain) associated with an address.
So each time when you're interacting with a smart contract, you're interacting with an address that is associated with a storage chunk containing the bytecode. Plus the bytecode points to other storage slots where the values of its variables are stored.
All state changes (including changes of the storage values) are part of the ledger database. The raw blockchain data only contain the state changes (not the current state), but most higher layers return the current state by default (you can still chose to fetch an older state, e.g. the "defaultBlock" param here). And some layers even disallow accessing previous states (e.g. Solidity and Vyper languages for writing smart contracts - you can compile this code to the bytecode).
But how does the the smart contract know when to pay the project team?
A smart contract can access current balance of any address, including its own. It can also have a variable containing the funding goal. Comparing these two values tells you whether the goal has been reached and whether the smart contract should pay the project team.
However, smart contracts currently don't have any native timers (such as cronjobs) or event handlers - and functions are executed after a transaction is sent to the address of the smart contract (data field of the transaction states what function you want to execute and what arguments you're passing).
So you need to either send the transaction (executing the withdraw() function) manually or using some offchain tool (that can watch the current balance and then send the transaction executing the function for you).
QUESTION
I try to change style of my class modal after radio button is unchecked, but it does not work. It only adds class card-modal-2 but not removing it. I tried stuff sth like nextElementSibling etc but still no progress. I'll be very glad for any help.
...ANSWER
Answered 2021-May-05 at 12:41Let's start with the solution:
QUESTION
I have a MVC client accessing a Web API protected by IDS4. They all run on my local machine and hosted by IIS. The app works fine when using local identity for authentication. But when I try to use Windows authentication, I keep getting "401 Unauthorized" error from the dev tool and the login box keeps coming back to the browser.
Here is the Windows Authentication IIS setting
and enabled providers
It's almost like that the user ID or password was wrong, but that's nearly impossible because that's the domain user ID and password I use for logging into the system all the time. Besides, according to my reading, Windows Authentication is supposed to be "automatic", which means I will be authenticated silently without a login box in the first place.
Update
I enabled the IIS request tracing and here is the result from the log:
As you can see from the trace log item #29, the authentication (with the user ID I typed in, "DOM\Jack.Backer") was successful. However, some authorization item (#48) failed after that. And here is the detail of the failed item:
What's interesting is that the ErrorCode says that the operation (whatever it is) completed successfully, but still I received a warning with a HttpStatus=401 and a HttpReason=Unauthorized. Apparently, this is what failed my Windows Authentication. But what is this authorization about and how do I fix it?
...ANSWER
Answered 2021-Apr-15 at 13:21In case anyone interested - I finally figured this one out. It is because the code that I downloaded from IndentityServer4's quickstart site in late 2020 doesn't have some of the important pieces needed for Windows authentication. Here is what I had to add to the Challenge function of the ExternalController class
and here is the ProcessWindowsLoginAsync function
QUESTION
ANSWER
Answered 2021-Mar-31 at 03:05This is how you can do that
QUESTION
I have two buttons that have the same class name and have same functionality but different inputs must be added, so I used document.querySelectorAll() and the forEach() method to get them, but now when I click one, the other gets clicked too. Is there a way I can prevent this without having two addEventListener for both buttons? Enable it to click only one button at a time.
My code:
...ANSWER
Answered 2021-Mar-01 at 13:41It's not actually "clicking" both buttons. What's happening is the following:
Your calculateBamboo() functions loops through all the inputElements: inputElements.forEach(); and you're executing your logic for all the inputs. So, no matter which button you press, calculateBamboo() is processing each input.
Passing target input using data-attributes will help you to identify which input belongs to clicked button
Also, @JerryBen is right, you don't need to add event listener to each button but instead, we can wrap all the buttons in one element, add event listener to it and identify which element was clicked.
QUESTION
I'm working with the Kickstarter Dataset from Kaggle and I would like to create meaningful visualization with ggplot about how display the project data about pledge ratios (this is a field I added, which is calculated by dividing the USD Pledged amount by the USD Goal amount, per project.
To replicate the dataset I'm using in R, please use the following code:
...ANSWER
Answered 2020-Dec-02 at 20:29What about an empirical CDF?
QUESTION
I need a JsonConverter that can handle the following Json Structure. I always want back the segment model for each object in the "segments" collection in the Json. The problem I am having is how to handle the multiple structures in the Json. I am somewhat familiar with writing JsonConverters but this one has me stumped. I asked the partner we are working with if it was possible to standardize the response and was told no.
...ANSWER
Answered 2020-Nov-10 at 19:43I figured out how to do it. It's quite a simple solution once I figured it out. The piece I was missing for awhile was that I should decorate the class with the JsonCoverter attribute instead of a property.
QUESTION
Let's say i have 2 objects each with the same properties but one has an extra property middleName and the other does not. How should i handle this in DC.js?
...ANSWER
Answered 2020-Oct-23 at 16:13Indeed, using undefined fields for your dimension or group keys can crash crossfilter because it does not validate its data. NaN, null, and undefined do not have well-defined sorting operations.
It's strange to see the value folded into another bin, but I suspect it's the same undefined behavior, rather than something you can depend on.
If you have fields which may be undefined, you should always default them, even if you don't want the value:
QUESTION
I am trying to normalize (perhaps not the precise term) a nested JSON object in PySpark. The actual data I care about is under articles. The schema is:
ANSWER
Answered 2020-Jun-15 at 23:37This should work. Let me know if you have any questions
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