Typology | Swift type checking and semantic analysis
kandi X-RAY | Typology Summary
kandi X-RAY | Typology Summary
Typology is a work in progress attempt to implement type checking of Swift in Swift itself. Currently it uses SwiftSyntax as a parser, but is ready to switch to other pure Swift parsers in the future when any are available.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of Typology
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Trending Discussions on Typology
QUESTION
I am trying to write an sql function on PostgreSQL, but I have an error with the 'IF':
...ANSWER
Answered 2022-Jan-07 at 16:30IF
is not implemented in the sql
language but it is in the plpgsql
language, see the manual.
You can either replace LANGUAGE sql
by LANGUAGE plpgsql
and then add BEGIN
and END
in the function body :
QUESTION
When deploying multiple MaxScale in a Master-Slave typology (failover from master to slave with Keepalived or similar) in front of a Galera Cluster in read-write-split
mode , everything goes fine. But what about a Master-Master like typology in a round-robin fashion, is this possible?
Ex.: Having one MaxScale at 10.0.0.1, a 2nd at 10.0.0.2 and Haproxy in front of it with a roundrobin
or leastconn
distribution algorithm (or even without Haproxy/load-balancer, where applications just connect randomly to one or another) is this possible/well supported by MaxScale?
ANSWER
Answered 2021-Oct-18 at 05:05Usually you can connect to any number of MaxScale instances as long as certain features are enabled to guarantee that all MaxScale instances pick the same server where they send writes to.
Galera ClustersIf you are using a Galera cluster, this can be done in a safe and conflict-free manner by enabling the root_node_as_master
parameter. It uses the Galera cluster itself to select which node it uses for writes. This allows your applications to connect to either of the MaxScale instances.
Even without this parameter it would not cause any problems with the database itself but due to the way Galera works, you increase the likelihood of running into a conflict when you COMMIT your transaction if you write to multiple nodes.
Asynchronous Replication ClustersIf you use MaxScale with a cluster that uses asynchronous replication, you still can do this as long as you configure your mariadbmon
monitor to use cooperative_monitoring_locks
. This causes the MaxScale instances to communicate via the database about which servers they see and which of them they chose for writes.
An added benefit of cooperative_monitoring_locks
is that you can enable the automated cluster management parameters auto_failover
and auto_rejoin
without having to worry about two MaxScales attempting to change the replication configuration at the same time: cooperative_monitoring_locks
makes sure only one MaxScale does it.
QUESTION
I have a series of .mdx files that contain the same information but on different sites (ex: title="aswan"; title="rome" etc). These files are located in a folder called "metadata".
I need to insert mdx information into a component (OurSites.js) that goes to form the HomePage of the site (index.js).
This is the content of the OurSites.js component:
...ANSWER
Answered 2021-Oct-01 at 04:45You have two options:
- Using page queries
- Using static queries (
useStaticQuery
hook)
With the first option, your queries must go on a page (hence the name) and you need to drill down the props containing your data to each desired component. Because of you already have the query set, you just need to:
QUESTION
Here's the situation, I'm in a Vue context, Laravel as backend. In my homepage I have a select for searching musicians based on their genre, so when I get to this page I want to show in each musician card the stars relative to the average votes received.
But I've got problems to manipulate the votes inside the template, and no idea of how to do in the methods actually. I know it's simple but it's getting me problems.
Here's the visual part of the problem, circled in red
And here's the code:
FilteredMusicians.vue
Here i cicle through the musicians array taken from the Laravel endpoint, then to get the votes i cicle through each musician.reviews to get the review.vote. Here I have problems to sum all the votes in one, and get the average of it.
...ANSWER
Answered 2021-Sep-09 at 19:01I'm more of a React person, but it seems pretty straight forward what you need to do here. First create a new method underneath your getMusicians
one, you can call it getAverageVotes
. I'd imagine it would look something like this:
QUESTION
From same input I have different xpaths for the same element (its almost exactly the same path except for 1 element, see below)
My logic its depends on the element "typology" (defined on my code)
XSLT 1.0
...ANSWER
Answered 2021-Jul-31 at 15:10Solve it defining date as:
QUESTION
I would like to optimize my code,
I use my xslt code for 2 kind of input, I classify the input /output by "Typology". Typology can be =1
or =2
.
Since the output are quite similar, its basically the same file except for 1 extra element
I don't want to keep "Extension1" and "Extension2" in the same xsl
. I would like to use one Extension for both typologies.
Before continue, in my original code Extensions have significantly more "elements" and is based on more than 2 conditions.
...ANSWER
Answered 2021-May-07 at 11:35This is difficult to follow without seeing an example of the input and the expected output. AFAICT, you could use something like:
QUESTION
I have a tricky challenge on a project that I'm not sure quite how to approach or even if it is possible at all.
I have a dataset where the values for two metrics (MetricA and MetricB here) are scraped from government reports from a range of different countries. The data is in a Tidy (long) format and each row is an observation for one metric for one area for one age group.
I am reporting the age ranges for each metric for those less than 15 years old (and for those who are 15 years old and older. The tricky thing is that many countries, but not all, use that typology.
Those countries where the reported values can't be mapped to this typology are discarded and those countries where data is incomplete for all ages is discarded. So, for example, something which had values for "< 15 years old", "15 to 49", "50+") would be kept, while a different country which had "< 18" and "18-49", but that's it, would be discarded, since it didn't have the "50+" people.
So, the challenge is this, I need to be able to pick out only those countries where the rows for that country cover the full gamut from 0 to whatever (I've been using 199 years old as a hypothetical max age in this case), with no overlap between age categories, with a break in those categories so that the data can be aggregated to form both a LT15 (Less than 15 years old) and a GTE15 (Greater than or equal to 15 years old) category. These are marked by minimum_age and maximum_age in my dataset. The proxy value for maximum_age when the value is to infinity (e.g. "18+" or ">59 years old" is 199.
Ideally this would use Tidyverse, but any package that could make this work would be fine.
A reprex for my dataset is here. In this case the Portuguese data would be discarded because there was no information for the 51 and greater age category.
...ANSWER
Answered 2021-Apr-17 at 21:38Here is an option with dplyr
. Convert the columns types (type.convert
- as some of the numeric columns were created as character class - by quoting). Grouped by 'country' 'metric', filter
out groups that doesn't have 'maximum_age' greater than 50, create a grouping column based on the values in 'minimum_age' and 'maximum_age' and summarise
the 'value' column by taking the sum
QUESTION
I have the following HTML Markup:
...ANSWER
Answered 2021-Mar-29 at 20:03//strong[ contains( text(), "Construction year:" ) ]/following-sibling::text()[1]
QUESTION
Hi i have these 4 tables: users, dishes, dish_order, orders.
users: some fields no foreign key
dishes
- id
- name
- desc
- price
- visible
- type
- user_id
dish_order
- id
- dish_id
- order_id
orders: some fields no foreign key
These are the models: User, Dish, Order.
User:
...ANSWER
Answered 2021-Mar-13 at 11:46You already have eloquent relationship in place in your models so you can utilize those relationships.
QUESTION
I have a map that displays a marker for every diferent public facilities in a city and I want to have a group of checkboxes to filter this facilities according to its typology, one checkbox for typology. Each typology will have multiple markers and the map will only show the checked ones.
I'm using react-leaflet v3.
This is what I tried to do:
...ANSWER
Answered 2021-Feb-18 at 20:23You can use lodash groupBy to build your groups by typology.
Then use Layer Groups to have several Markers behave as an Overlay.
Something in the lines of:
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