ergo | Low-code task engine built with Rust and Svelte
kandi X-RAY | ergo Summary
kandi X-RAY | ergo Summary
Ergo is a low-code IFTTT/Zapier style application, built with Rust and Svelte. Tasks are customizable with Javascript and can contain state machines for more advanced task handling. This project is in very early stages right now with no current plans for proper publishing, but that will probably come some day.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of ergo
ergo Key Features
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Community Discussions
Trending Discussions on ergo
QUESTION
I'm trying to sort key/val structs in an array that it's a tree node of a b-tree. When I insert a key/val struct into a node I place it at the end of the struct then perform a qsort.
...ANSWER
Answered 2021-Jun-03 at 17:25The compare function is passed addresses to elements. You sort array of pointers. So compare function receives a pointer to the pointer in the array. Do:
QUESTION
Hello there dear internet, and thank you for getx,
I have a question regarding getx rx flow &/ getx initial. I am new to getx, but a veteran in rxjs, where you get a value only emitted on .next(value)
;
My question is: how can - by all means [4] - the emission of an initial null value be avoided?
My basic understanding is that the on the UI or widget, the Obx()
, Getx()
or GetBuilder()
will only be on value emission.
Here are some snippets regarding this question:
This specific line from [3] Text('' + _identity.value.profile.name))
always leads to null [3] first, after a few milliseconds, the response from the server gets set and all is good.
So, how to avoid that first one null value emission, ergo exception? Because that's my expectation based on the general redux experience.
1: https://github.com/jonataslaw/getx/blob/master/lib/get_rx/src/rx_types/rx_core/rx_impl.dart#L371
2: Controller
...ANSWER
Answered 2021-Apr-03 at 19:23Text cannot be given a null value, you should use ?.name
to prevent this and provider a default value if null, example:
QUESTION
Pretty simple set up:
...ANSWER
Answered 2021-Apr-01 at 00:19This should work. As per WHATWG it should work. As per caniuse.com it should work.
However, it appears to only work when the value was edited by the user, not set from JavaScript. I did not find anything on WHATWG or MDN regarding that behavior (perhaps it is there, and I don't know where to look).
It is documented on WHATWG. Both minlength
and maxlength
require user interaction. To be more precise, when the user modifies the input value a "dirty value flag" is set, which is taken into account in the validation. See Limiting user input length: the maxlength attribute:
Constraint validation: If an element has a minimum allowed value length, its dirty value flag is true, its value was last changed by a user edit (as opposed to a change made by a script), its value is not the empty string, and the length of the element's API value is less than the element's minimum allowed value length, then the element is suffering from being too short.
Things I tested but do not make it work: Listening to the "invalid"
event. Triggering an "input"
event. Removing focus from the input
with blur()
before checking. Checking from queueMicrotask(function)
. Checking from requestAnimationFrame(function)
. Checking from double requestAnimationFrame(function)
. Checking with a valid value and then checking with an invalid value. Setting either a valid or an non-empty invalid default value via HTML attribute. Setting the value with setAttribute
from JavaScript. Setting defaultValue
.
I tested on Chromium Edge and Firefox.
I also found the question How can I trigger the minlength validation when field is set programmatically? which provided no solution.
Anyway, you can use pattern
to mimic this validation constraint. And yes, that one will trigger from JavaScript correctly, as most validation constraints do. See https://stackoverflow.com/a/10294291/402022
QUESTION
I've got an Object called Price
, that describes the selling and buying behaviour of an item. Next to some other properties it looks mainly like this:
ANSWER
Answered 2021-Mar-08 at 15:47Try it this way: First filtering out all prices that are smaller than the desired amount and then taking the biggest value out of the list with max().
QUESTION
I have observed the following behaviour in production instances of Nuxt Universal Apps:
Given "User A" makes a page request that accesses nuxt's server side and a server-side method such as asyncData
dispatches state changes in the process
if "User B" on a separate machine makes a request to the server via a server-side method for the state data that "User A" changed earlier,
then "User B" will be able to access that data.
ergo nuxt is treating Vuex as a single store on the server with no distinction between different callers.
Is there a configurable way to prevent this behaviour and insist that each user is only able to access data associated with their local machine?
[EDIT] as requested, this is an approximation of the store's index.js
...ANSWER
Answered 2021-Mar-02 at 17:10In my opinion it isn't very clear in the docs**, but you need to export the store as a function (with an explicit or implicit return)- not an object. Exporting as a function creates a new store on the server, whereas exporting as a plain object will always return that same object.
**EDIT: Seems the docs have been updated to highlight this now.
Here's the example in the docs:
QUESTION
I am trying to learn frama-c from Allan Blanchard's tutorial and I have had trouble verifying the installation as suggested in the tutorial. The author provides a C file with ACSL annotations, all of which frama-c is supposed to be able to prove. However when I run the command (frama-c-gui -wp -rte main.c
) I get the following:
I installed frama-c (version 22.0) via opam (version 2.0.4) on an ocaml-base-compiler.4.11.1 switch. When I installed it I had an issue with Why3 not being able to detect Alt-Ergo and I ended up editing ~/why3.config manually. I mention it here even though I am not sure whether or not it's related to the aformentioned problem.
...ANSWER
Answered 2021-Feb-15 at 07:04From what I can judge based on the screenshot, this seems pretty much related indeed. Notably, whenever you see Failed
after a prover, this is a sign that something went wrong: a prover simply unable to prove something would rather be indicated as Unknown
.
In your case, I'd tend to think that the issue comes from the fact that Alt-Ergo 2.4.0, the version you are using, is fairly recent (more recent than the latest Why3 version in fact), and is not yet supported by Why3. As mentioned in the reference configuration for Frama-C, Alt-Ergo 2.2.0 is known to be fully supported, hence you may want to opam pin add alt-ergo 2.2.0
to work with that version. After that, don't forget to have Why3 re-detect the provers why3 config --detect-provers
. Should this step be a problem, feel free to open a new question on this specific topic (though I suspect that the issue was related to Alt-Ergo 2.4.0).
QUESTION
I want to write an endpoint which always shows the newest messages of a redis stream (reactive).
The entities look like this {'key' : 'some_key', 'status' : 'some_string'}
.
So I would like to have the following result:
- Page is called, content would be for instance displaying an entity:
ANSWER
Answered 2021-Jan-14 at 06:20There's a misconception here, reading from Redis reactively does not mean you have subscribed for new events.
Reactive will not provide you live updates, it will call Redis once and it will display whatever is there. So even if you wait for a day or two nothing is going to change in UI/Console, you will still seeing N entries.
You need to either use Redis PUB/SUB or you need to call Redis repetitively to get the latest update.
EDIT:
A working solution..
QUESTION
I would like to remap the 'j' key so that it presses n when ergo is true, or y when it is false with AutoHotKey. When I remap normally using "j::n" for example, shift+j outputs a capital N, and so do other modifiers with the 'j' key. However, my code below only works when the letters are pressed without modifiers. Is there a way to get around this, and conditionally remap keys with AutoHotKey?
...ANSWER
Answered 2021-Jan-01 at 15:03When I remap normally using "j::n" for example, shift+j outputs a capital N, and so do other modifiers with the 'j' key. However, my code below only works when the letters are pressed without modifiers.
Looks like you are looking for the Wildcard *
modifier.
From the docs:
Wildcard: Fire the hotkey even if extra modifiers are being held down. This is often used in conjunction with remapping keys or buttons.
So after this change, your code would look something like:
QUESTION
I have a rather strange example, and so I will just put the context out here briefly, and we can hopefully just pretend it's a good idea.
I'm using a profiler that requires regular calls to its FRAME() macro so that it knows where CPU frames of a game start and end (the object the macro builds is RAII/scope based). I'm using fibers for my threading (main 'thread' is also a fiber worker), and this profiling macro only supports being called from a thread not registered with the profiler as a fiber worker thread. Ergo, I have this awful solution in the short-term, where I communicate to a separate thread just for this macro. The goal is to get the timing of construction/destruction of the RAII object as accurate as possible on this separate thread without disrupting the calling thread's timing. But sometimes, the entire application hangs. I don't understand how that's possible here.
Main 'thread' (actually on a fiber but that doesn't matter) / game loop:
...ANSWER
Answered 2020-Dec-26 at 05:11 std::unique_lock unique(mutex);
cv.wait(unique, [this]() { return bSignalled == true; });
unique.unlock();
bSignalled = false;
QUESTION
I have a problem with quite a complex function I am trying to build It is asynchronous and recursive and based on the tree of nodes it is to create their instances in the Mongoose database.
The sample data Im sending can look like this:
...ANSWER
Answered 2020-Dec-12 at 22:53Some things to change:
- don't use
reduce
(where you're not using the accumulator correctly) but a plain loop - don't pass a callback to the
save
method to make it return a promise - actually
await
the recursive call as well - remove the unnecessary conditions
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Rust is installed and managed by the rustup tool. Rust has a 6-week rapid release process and supports a great number of platforms, so there are many builds of Rust available at any time. Please refer rust-lang.org for more information.
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