hold | Deliver the most recently seen event to new observers | Reactive Programming library
kandi X-RAY | hold Summary
kandi X-RAY | hold Summary
Deliver the most recently seen event to each new observer the instant it begins observing. A held stream is always multicast. Note: @most/hold >= 3.0.0 is compatible with @most/core. Use @most/hold 2.x for compatibility with most 1.x.
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QUESTION
I am making a simulation with C (for perfomance) that (currently) uses recursion and mallocs (generated in every step of the recursion). The problem is that I am not being able to free the mallocs anywhere in the code, without having the wrong final output. The code consist of two functions and the main function:
evolution(double initial_energy)
ANSWER
Answered 2021-Jun-13 at 04:47You're supposed to free memory right after the last time it will be used. In your program, after the while loop in recursion, Energy isn't used again, so you should free it right after that (i.e., right before return event_counter;).
QUESTION
customer_data.json (loaded as customer_data)
...ANSWER
Answered 2021-Jun-15 at 17:32I am trying to go through each of the books in
holdsusingholds[0],holds[1]etc and test to see if the title is equal to a book title
Translated almost literally to Python:
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
Hello my favorite people!
I am trying to send an email after submitting a form, with the AUTO INCREMENT number attached to the email because the AUTO INCREMENT number is the clients Job Card Reference Number. So far i have successfully created the insert script which inserts the data into the database perfectly, and also sends the email too. But does not attach the AUTO INCREMENT number into the email. The INT(11) AUTO INCREMENT primary key is "job_number" in my MySQL database.
Here is my insert page:
...ANSWER
Answered 2021-Jun-15 at 09:58 $insertId = false;
if($insert_stmt->execute())
{
$insertId = $insert_stmt->insert_id;
$insertMsg="Created Successfully........sending email now";
}
if($insertId){
// do stuff with the insert id
}
QUESTION
I am not sure how to extract multiple pages from a search result using Pythons Wikipedia plugin. Some advice would be appreciated.
My code so far:
...ANSWER
Answered 2021-Jun-15 at 13:10You have done the hard part, the results are already in the results variable.
But the results need parsing by the wiki.page() nethod, which only takes one argument.
The solution? Use a loop to parse all results one by one.
The easiest way will be using for loops, but the list comprehension method is the best.
Replace the last two lines with the following:
QUESTION
I have the table retrieve from database. Each row have its own action column where there is radio button like po,ao,rac,rap,cancel,hold and ids are supplied via hidden field. How can I loop through all the datas and all respective ids to update in the database.My Database table name is docs where radio button values should submit updated in payment_comment field in database: I dont understand how to loop through all respective ids and update in database.
Here is my view:
...ANSWER
Answered 2021-Jun-15 at 13:00Simply prefix your names like this :
QUESTION
I've an model:
User(id, firstName, lastName);
I get the user from POST request in Java Spring boot framework using @ModelAttribute Annotation in the prototype.
ANSWER
Answered 2021-Jun-15 at 11:36When you use the Spring Framework, there is a serialization/deserialization happening "behind the scenes" which involves your POJOs.
For example, into this endpoint:
QUESTION
I'm trying to sort my rows according to the Status (B), according to a custom order. I used to have Status in A, and the code worked fine, but then wanted to add an additional column before it and everything's been scuppered. Now getting a 1004 error.
My table spans A:L. Here's the code:
...ANSWER
Answered 2021-Jun-11 at 21:02The error implies that it can't find a range to work with.
As we are working with a table, the .Columns(2) wont work.
This part hints that you have a table that your are trying to sort.
There's two approaches that I can think of now, to solve this:
1. Sort a regular range by custom list
We can remove the table by:
- Click on the table
- Go to design tab
- Convert to Range
Then your originally code will work (Changed Key1:=.Columns(2)):
QUESTION
byte b = 0b1111_1111;
byte c = 0b111_1111;
byte d = 0b0111_1111;
ANSWER
Answered 2021-Jun-15 at 10:44All basic integer types in Java are signed. To be exact, byte, short, int and long are signed big endian two complement integers. That means that they run from - 2n-1 to 2n-1 - 1 where n is the number of bits - 8 for a byte (Byte.SIZE in Java), and therefore the range is from -128 to 127.
The number you are using is always an integer; number literals always are. However, the integer is actually the value 0x000000FF in hexadecimals. That cannot be stored as it is higher than 127. You can however do an explicit conversion; your value does consist of 8 bits after all.
QUESTION
I can't do something so simple and I'm pissed off. I am using bootstrap in Laravel. I need to set it up for mobile. The footer either hovers over the body or stays in the middle of the page. How can I solve this?
...ANSWER
Answered 2021-Jun-15 at 10:44I had the same issue with fixed footer at bottom and its mainly due to html structure. This post has well explained fixed bottom footer
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