vanilla | Bare metal ARM Cortex-M7 operating system
kandi X-RAY | vanilla Summary
kandi X-RAY | vanilla Summary
Vanilla is a single-core operating system for the ARMv7 architecture. It will work on all Cortex-M7 processors from Microchip. The SAME70 Xplained board might be the best choice for testing as it doesn't require any port. I will make a custom board soon and explain the porting process - it's easy!.
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QUESTION
My code should print the number of all the words replaced from Z's to Y's, using a while loop.
...ANSWER
Answered 2021-Jun-15 at 17:18Use sum and count with list comprehension
QUESTION
I'm struggling to use the Micronaut HTTPClient for multiple calls to a third-party REST service without receiving a io.micronaut.http.client.exceptions.ReadTimeoutException
To remove the third-party dependency, the problem can be reproduced using a simple Micronaut app calling it's own service.
Example Controller:
...ANSWER
Answered 2021-Jun-15 at 09:51If this isn't going to throw an exception then I don't know what is going to.
This is caused by using blocking code within Netty's event loop.
The code over here is making a blocking request 20 times in a row which cause the machine to break. I don't know what data is coming from the client but I would never recommend to do it in this manner.
QUESTION
I'm trying to solve an exercise in vanilla JS but can't figure out what I am doing wrong. I would like to change to color text to red if the product price is > 300.
In the console.log I'm getting all ok but on changeColor.style.color = "red"; I'm getting this error: TypeError: Cannot set property 'color' of undefined
Also because the page has a lazy load I could I get all price change by the time you are scrolling down?
Thanks
...ANSWER
Answered 2021-Jun-15 at 14:40 var offer = document.querySelectorAll(".grocery-item__normal-price");
var price = document.querySelectorAll(".grocery-item__normal-price");
let changePriceColor = 300;
price.forEach( (price) => {
var changeColor = price.innerHTML.slice(0,4).replace(/,/g, '');
if( changeColor > changePriceColor ) {
price.style.color = "red";
console.log(price, "true");
} else {
console.log(changeColor, "false")
}
})
}
exercise_3();
QUESTION
In (vanilla) GHCi 8.6.5 following function was prefectly valid:
...ANSWER
Answered 2021-Jun-14 at 14:46The changes to the handling of ~ and @ in GHC 9.0 are described here. Quoting from the migration guide:
GHC 9.0 implements Proposal 229, which means that the !, ~, and @ characters are more sensitive to preceding and trailing whitespace than they were before. As a result, some things which used to parse one way will now parse differently (or throw a parse error).
QUESTION
When I compare a string literal with a non-ASCII character in R source code to the same string passed in through the command line, the two strings test as identical and have identical charToRaw representations, but serialize differently. What's going on? Aren't both strings in UTF-8?
To reproduce this, try this shell script (I'm running Dash 0.5.10.2-7 and R 4.0.2 on Ubuntu 20.10):
...ANSWER
Answered 2021-Jun-14 at 15:31This might show what's going on
QUESTION
Im new to JavaScript, I'm using vanilla js , html and css to survey website where user can add question, and option as well, when they click a button it will create a container which they can fill with the 'tag:textarea'. I'm using the 'createElement()', 'setAttribute()' method for creating a new container. But since each container has so many nested nodes or components, I have write a tons of boilerplate code to create a container, plus I have to change the id of some element with the nested 'Hell' , It become so hard to managed. My html code is Below:
...ANSWER
Answered 2021-Jun-14 at 11:15You have several options, two of which are:
If you don't mind parsing HTML each time (and parsing HTML is really fast on modern browser), you can use
insertAdjacentHTMLinstead, perhaps with a template literal so you can embed newlines easily and use${x}syntax for embedded values:
QUESTION
Every time somebody asks a question about delete[] on here, there is always a pretty general "that's how C++ does it, use delete[]" kind of response. Coming from a vanilla C background what I don't understand is why there needs to be a different invocation at all.
With malloc()/free() your options are to get a pointer to a contiguous block of memory and to free a block of contiguous memory. Something in implementation land comes along and knows what size the block you allocated was based on the base address, for when you have to free it.
There is no function free_array(). I've seen some crazy theories on other questions tangentially related to this, such as calling delete ptr will only free the top of the array, not the whole array. Or the more correct, it is not defined by the implementation. And sure... if this was the first version of C++ and you made a weird design choice that makes sense. But why with $PRESENT_YEAR's standard of C++ has it not been overloaded???
It seems to be the only extra bit that C++ adds is going through the array and calling destructors, and I think maybe this is the crux of it, and it literally is using a separate function to save us a single runtime length lookup, or nullptr at end of the list in exchange for torturing every new C++ programmer or programmer who had a fuzzy day and forgot that there is a different reserve word.
Can someone please clarify once and for all if there is a reason besides "that's what the standard says and nobody questions it"?
...ANSWER
Answered 2021-May-19 at 19:55Objects in C++ often have destructors that need to run at the end of their lifetime. delete[] makes sure the destructors of each element of the array are called. But doing this has unspecified overhead, while delete does not. One for arrays, which pays the overhead and one for single objects which does not.
In order to only have one version, an implementation would need a mechanism for tracking extra information about every pointer. But one of the founding principles of C++ is that the user shouldn't be forced to pay a cost that they don't absolutely have to.
Always delete what you new and always delete[] what you new[]. But in modern C++, new and new[] are generally not used anymore. Use std::make_unique, std::make_shared, std::vector or other more expressive and safer alternatives.
QUESTION
In Bootstrap 4 I used the following sample code to update the title of the tooltip (where 'statusIcon' is the element, in this case is a font awesome icon, but same principal would apply for a button or anything else:
...ANSWER
Answered 2021-Jan-23 at 18:22You can update the tooltip title by changing the data-bs-original-title attribute
QUESTION
I'm trying to run one test for my class "Sinus" (used to compute the sinus of a float), but when I try to run this test to generate my coverage report with Cobertura, it doesn't work and I really don't know why ! Dou you have advices or any explanation please ? (I use the cmd : mvn cobertura:cobertura)
-This is my test:
...ANSWER
Answered 2021-May-27 at 14:26Your test is a junit4-api based. But from your pom.xml you have junit5 dependencies.
Removing jupiter dependencies should do the trick.
Regarding cobertura, as you run on java 8 preferably you should migrate to JaCoCo as cobertura with java version higher than 7 is buggy.
QUESTION
My Issue: Please help me run this code as it should. I am getting a null form error when typing a City name in the place holder and I'm not sure why I am practicing this code from here: https://webdesign.tutsplus.com/tutorials/build-a-simple-weather-app-with-vanilla-javascript--cms-33893
...ANSWER
Answered 2021-Jun-13 at 18:25It's because your javascript code is executed before DOM is fully loaded.
So you have two choices, either move
as the last item inside body (before )
or place all your javascript code inside:
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