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- run subscribes to the NATS server .
- startSubscriber starts a subscriber for the given connection .
- logCloser closes the given closer .
- Main entry point .
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QUESTION
I couldn't find any documentation or questions about whether it's possible to write the case
statements in a switch statement on one line nor what the best practice and way to write them on one line in JavaScript is.
The most related questions were: CodeGrepper Question and Switch statement for multiple cases in JavaScript
I currently have a function with a switch statement that returns a product's name:
...ANSWER
Answered 2022-Apr-09 at 16:42Solution 1
Thanks to @Ryan Wheale, @Bergi and @T.J. Crowder who helped me realize that since Javascript doesn't require line breaks it could all be written on one single line separated by
;
and I don't need to put any{}
around the return statements. While the following code snippet does answer my question, it's also important to mention that a one liner like this is not at all readable and should be avoided.
QUESTION
I'm trying to remove all line breaks in an HTML file using gulp-regex-replace
. I'm trying the regular expressions from here. None of them work.
ANSWER
Answered 2022-Apr-08 at 06:19I would switch to gulp-replace. gulp-regex-replace
was last published 8 years ago and probably doesn't work well with gulp4.+.
I tested this with gulp-replace
and it worked to remove newlines.
QUESTION
Given a number input:
...ANSWER
Answered 2022-Mar-30 at 19:42All input elements in HTML return a string as their value. If you want the result as an int, you have to convert it.
QUESTION
So I'm trying to run this really simple code on my LCD display, using an ESP32. When I compile the code in the Arduino IDE I get no errors. But, when I try to upload it, I get the following error:
...ANSWER
Answered 2022-Feb-17 at 12:56Probably a soft link will do, try sudo ln -s /usr/bin/python3 /usr/bin/python
QUESTION
I am learning Javascript and have studied these similar cases 1, 2, 3, 4, 5, 6, 7, 8 with no success. I don't use dependencies like jQuery or Bootstrap.
I want to replace alert("Success!"); with something like document.getElementById('modal-team').showModal(); in the below code, to show a modal and keep the user in the same page:
...ANSWER
Answered 2022-Mar-17 at 19:19Modals do not exist in JavaScript or HTML standard. In order to define the concept, you have two options:
- you create it yourself
- you load one particular implementation from a library which defines it in a particular way.
The questions listed above are using Bootstrap's implementation of modals and therefore would only be applicable if you used Bootstrap.
A modal is not particularly difficult to implement without a library, but you have to consider solving a few problems:
- how it displays on all devices, including mobile devices
- how it scrolls when its contents exceed the screen size (if you implement scrolling at
level or at
.modal-body
level) - how you handle multiple modal instances (when you open a modal from another modal, do you keep them both open or do you close the initial modal)
- if (and how) you allow data injection into the modal instance and if (and how) you allow data injection back from the modal instance, when the modal gets closed (typically solved by specifying a callback which gets called by the modal, before it closes).
All of the above are already solved in most modal implementations, which is why people prefer using them, rather than writing their own.
To answer your specific question, an HTMLDivElement
does not have a .showModal()
method. Before you could call such a method, you first need to define it.
QUESTION
Trying to put a bash script to install MongoDB on an EC2 via userdata. Im starting simple with this easy script before I do that one I am actually trying to do. I cannot even get the simple one to work. When I try and create the stack with the template below it gives me the error Invalid template property or properties [Properties]. Any ideas whats wrong with my userdata section?
...ANSWER
Answered 2022-Mar-17 at 07:40Your UserData
is part of AWS::EC2::Instance
. It is not a separate resource. Thus it should be:
QUESTION
I want to create a button such that if I click on it, it changes the entire column of a table in database. Please consider the code below:
Model:
...ANSWER
Answered 2022-Mar-10 at 02:23You use [httppost]
to receive a post request in your IncrementYear ation, So you need send a post request in your view.
change the button like :
QUESTION
I am really stuck! As a newbie, I am trying to build a guessing game for Flags of the World. Here is what I'm trying to do:
- I have an array of objects which I want to shuffle
- I then want to select the correct country that matches the image
- Add countries to three answer buttons below the image
- I want to check for a correct/wrong answer
- Add support for the user to click next which would load the next 'correct' country and image and two 'incorrect' countries from my array of objects.
Currently I am doing this by creating variables using a fixed index from the shuffled array for the currentFlagIndex (correct) and wrongFlagIndex (wrong) and anotherWrongIndex (also wrong). I can make this all work once, as per the code below, but I am completely stuck on how to move to the next question.
I am running this all against a 60 second timer. I have the timer counting down, but have not attempted to put a check in to ensure this is not at zero (I will do that once I know how to move my questions on).
Flags:
...ANSWER
Answered 2022-Mar-06 at 22:31So you are trying to find a way to:
- Generate the wrong answer flags(instead of hard coding it)
- Regenerating a new game
- Restart the X timer
Good question there are multiple ways to complete this.
One route would be to move/swap(swap items for faster Big O if you are worried about speed) the selected flags to the end of the array. (For most of the logic you will be reusing the random generated logic)
Flags c=correct s=selected
[s,x,x,c,x,s,x,...] => [x,x,x,x,...,s,c,s]
Now when generating the next correct flag for a new game you would reuse the random generated logic and reduce the length of the flags array by one (so you don't choose the same flag as the previous game but I'll leave that to you).
I have a snippet of logic here, you just need to restart the timer: https://jsfiddle.net/pmt3Ls2q/11/
QUESTION
I have tried both AWS Go SDKs both versions and every time I get an error stating that the Details field is malformed. The Details field accepts a JSON string.
In SDK V2 you basically have a struct for the event
...ANSWER
Answered 2022-Mar-04 at 19:58The code on the page you linked is not 100% correct. They actually link the "complete example" at the bottom of the page, which has slightly different code:
QUESTION
Exercise is as follows:
...Generate every possible sequence whose elements are from the set {0, 1, 2} where 0 occurs m times, 1 occurs p times, and 2 occurs q times. The input file contains three natural numbers separated by spaces, with a maximum value of 100. The solution must be written to the output file line by line in lexicographic order. Each line should contain the elements of the series separated by spaces.
ANSWER
Answered 2022-Feb-16 at 09:15As you see and say yourself, you simply generate all possible permutations of the 0 2 2
array. There are 6 permutations for an array of length 3, and you correctly get them, but because there are two equal numbers, some of these permutations are equal.
However, apparently what you are required is to do generate only different permutations. Basically, this means that you need a new algorithm.
A simple solution may be to find a way to remove repeating permutations. There may be many approaches to it, starting with simply storing all the permutations and checking if you have already generated a given permutation, or storing the original array index with each number and requiring that the indices of equal number go in increasing order, etc. Or you can organize your recursion in a different way (that's what I would have done). Obviously the complexity of each approach will be different.
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