kraken | first boilerplate for front-end web developers | Script Programming library
kandi X-RAY | kraken Summary
kandi X-RAY | kraken Summary
Kraken is a lightweight, mobile-first boilerplate for front-end web developers. View the demo and get started.
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Trending Discussions on kraken
QUESTION
I have discord bot and it checks whether streamer is live or not. And I have a function that prevents it from spamming when someone is live:
...ANSWER
Answered 2021-May-22 at 14:13To send the embed in the same message you can use content
an example would be:
QUESTION
I have an SQL-Table which is build like a tree list (parent child). Means you have rootId's and childId's. Each entity has a ParentId. If the ParentId is null then that element is a root item.
Here an example of the hierarchical architecture
...ANSWER
Answered 2021-May-21 at 20:26If you don't interest to load all records from database then process them, you have two choices :
Solution 1 : Write a StoreProcedure and processing in database.
Solution 2 : Write a recursive function that send multiple requests to database (In the amount of root depth)
Here is a function for solution 2 :
QUESTION
I am not great with tidyverse so forgive me if this is a simple question. I have a bunch of files with data that I need to extract and add into distinct columns in a tibble I created.
I want the the row names to start with the file IDs which I did manage to create:
...ANSWER
Answered 2021-May-21 at 17:08You could also do:
QUESTION
I am having an issue with getting the correct headers in my pandas dataframes. Below is my full code. I would like to strip all the headers and then add my own at the very end.
...ANSWER
Answered 2021-May-20 at 22:12Your column Index
has become a MultiIndex
because of concatenation, you should be able to reassign your columns with the first level from that MultiIndex
QUESTION
So when loading kraken.com historical datafeed into pandas to convert from tick data (time and sales) to OHLC (Open,High,Low,Close) data I run into an issue where I am not able to resample for 'high' & 'low' as they throw errors, but 'first', 'last', and 'sum' work just fine, I don't know why or what the available options are as it seems there is an enumerated list of options (total guess there).
The code below takes heavy inspiration (out right copping blindly) from ryantjo's Resampling Market Tick Data.
...ANSWER
Answered 2021-May-17 at 18:15If you want to extract the highest value from each group you need to use max
QUESTION
I have a large table with a comments column (contains large strings of text) and a date column on which the comment was posted. I created a separate vector of keywords (we'll call this key) and I want to count how many matches there are for each day. This gets me close, however it counts matches across the entire dataset, where I need it broken down by each day. The code:
...ANSWER
Answered 2021-Apr-21 at 18:50As pointed out in the comments, you can use group_by
from dplyr
to accomplish this.
First, you can extract keywords for each comment/sentence. Then unnest
so each keyword is in a separate row with a date.
Then, use group_by
with both date and comment included (to get frequency for combination of date and keyword together). The use of summarise
with n()
will give number of mentions.
Here's a complete example:
QUESTION
I have a simple cryptocurrency app that uses an API to fetch prices. I am using Firestore to store my API key and my app retrieves my API key from Firestore when launched. My API key is the only data I have in my Firestore. Since my app doesn't allow users to create profiles/accounts, I don't include user authentication in my rules. My security rules for Firestore are:
...ANSWER
Answered 2021-Apr-09 at 17:22For best security, consider your security rules part of your application logic, on the same level as your application code is. This means that your rules should only allow the exact usage that your application code needs.
Since you didn't share the relevant code, I'll make some assumptions and general recommendations below.
If your code does get()
call on all documents in the Data
collection, then your current rules are a good proxy for that. But if for examples, your code accesses only a single document in that collection, this would be the closer equivalent:
QUESTION
I have two tables with >4million records i need to make a select query with where two columns match bring both tables value on this match and then i will insert that into a 3rth table:
This is table A: (bitfinex)
This is table B: (Kraken)
I need to do a SELECT where timestamp and exchange_pair matches, as you can see in this image from table B the same timestamp can have multiple exchange_pair, what i need to do is match those with the other table columns and bring both table content
this was the query i used at once but when analyzing the results i had some mismatch values on the joins ( i did not found the relation, it was not either timestamp or the exchange pair) i wonder if my query syntax is right for the result im looking for.
...ANSWER
Answered 2021-Mar-08 at 08:43How about:
QUESTION
I am getting an exception: "Object reference not set to an instance of an object". I can't understand, why. What's wrong with my connections between tables? I wanted to establish a relationship between the "Country" and "Company" tables in a one-to-many relationship, to avoid duplicating countries in the Company table ( This is what the table looked like before - Image3. I want to create 3 table.
Information about exception: Image1
Information2: Image2
The table before: Image3
An exception occurs in the tables: "Product" - "Company" - "Country". Seed Database:
...ANSWER
Answered 2021-Feb-24 at 00:30You have the error:
QUESTION
In the table "Categories" the data is displayed normally. But I can't get data in tables: "SubCategories" and "Products". The values in the columns are == null. Foreign keys between tables appear when viewed by the designer. Previously, there were no such problems, but suddenly a problem appeared with using asynchrony.
...
ANSWER
Answered 2021-Feb-22 at 02:44I found that SubCategoryName is too short for "Video Game Consoles && Accessories". This gives an exception. Now it is varchar(30). Should be varchar(50) at least. All tables were seeded succesfully after I made some subcategory name and product name values shorter.
I recommend you to fix the SubCategory and Product classes by replacing [StringLength(30)] by [StringLength(96)] or even larger.
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