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error of the assigning unique ptr in another thread


error of the assigning unique ptr in another thread

By : Subhash Chandra
Date : November 22 2020, 02:42 PM
it helps some times Not taking pointers into account, you start a thread but you don't join() or detach() the thread, which can cause the behavior that you saw.
code :


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assigning unique id and unique name to dynamically created element using global variable

assigning unique id and unique name to dynamically created element using global variable


By : Yonatan Raba
Date : March 29 2020, 07:55 AM
seems to work fine Your code works for the input (not for the select), but I would advise an overall clearer, less error-prone, different approach. It creates nodes the proper way (using document.createElement()) instead of setting innerHTML - avoiding escaping errors, invalid HTML tags and other common mistakes .
Click here for demo.
code :
var count = 2;

function addRow() {

    var table = document.getElementById("studenttable");
    var row = table.insertRow(-1);

    var cell1 = row.insertCell(0);
    var cell2 = row.insertCell(1);

    var ipt = document.createElement('input');
    ipt.setAttribute("type", "text");
    ipt.name = "nametext" + count;      // setting unique NAME
    ipt.id = "nametext" + count;        // setting unique ID
    ipt.setAttribute("required", "true");

    cell1.appendChild(ipt);

    var theDiv = document.createElement('div');
    theDiv.setAttribute("class", "dropdown dropdown-dark");
    var theSelect = document.createElement('select');

    theSelect.name = "select"+count;  // setting unique NAME
    theSelect.id = "select"+count;    // setting unique ID

    theSelect.setAttribute("class", "dropdown-select");
    // option "Select an option"
    var opt0 = document.createElement('option');
    opt0.value = "";
    opt0.text = "Select an option";
    theSelect.appendChild(opt0);
    // option "Male"
    var opt1 = document.createElement('option');
    opt1.value = "1";
    opt1.text = "Male";
    theSelect.appendChild(opt1);
    // option "Female"
    var opt2 = document.createElement('option');
    opt2.value = "2";
    opt2.text = "Female";
    theSelect.appendChild(opt2); 

    theDiv.appendChild(theSelect);
    cell2.appendChild(theDiv);

    count++;
}
Parallel.For loop - Assigning a unique data entity for each thread

Parallel.For loop - Assigning a unique data entity for each thread


By : Anju Arora
Date : March 29 2020, 07:55 AM
This might help you You can use a concurrent collection to store your 10 objects. Each Worker will pull one data entity out, use it, and give it back. Te use of the concurrent collection is important, because in your scenario the normal one is not thread safe.
Like so:
code :
var queue = new ConcurrentQueue<DataEntity>();
// fill the queue with 10 items

Parallel.For(0, limit, new ParallelOptions { MaxDegreeOfParallelism = 10 }, i =>
    {
        DataEntity x;
        if(!queue.TryDequeue(out x))
            throw new InvalidOperationException();
        DoWork(i, x);
        queue.Enqueue(x);
    });
var entities = new BlockingCollection(new ConcurrentQueue<DataEntity>());

// fill the collection with 10 items

Parallel.For(0, limit, new ParallelOptions { MaxDegreeOfParallelism = 10 }, i =>
    {
        DataEntity x = entities.Take();
        DoWork(i, x);
        entities.Add(x);
    });
Increase clarity of output by assigning unique ID to individual thread

Increase clarity of output by assigning unique ID to individual thread


By : Rohit Raj
Date : March 29 2020, 07:55 AM
this one helps. You can print the name of the current thread using "Thread.currentThread().getName()". So your sysouts would change to:
code :
System.out.format(Thread.currentThread().getName() + "%s: %s has" +
            " bowed back to me!%n",
            this.name, bower.getName());
new Thread(new BowLoop(alphonse, gaston), "MyThread1").start();
new Thread(new BowLoop(gaston, alphonse), "Mythread2").start();**
Assigning a long JSON response to Dictionary produces a Thread error

Assigning a long JSON response to Dictionary produces a Thread error


By : Yao Ji
Date : March 29 2020, 07:55 AM
To fix the issue you can do First of all you are casting to an optional dictionary so it should be conditional binding i.e:
code :
if let unwrappedJson = json as? ....
    if let unwrappedJson = json as? [String : Any]
creating time intervals and assigning unique id to every unique interval

creating time intervals and assigning unique id to every unique interval


By : user283391
Date : March 29 2020, 07:55 AM
Any of those help I was working in an answer that is really similar (same?) to what @H 1 just did. Note that all columns are character because in your example is not really clear if you are really working with time columns or not.
code :
library(dplyr)

y <- data.frame(
  stringsAsFactors = FALSE,
             start = c("01:00:00","13:00:00",
                       "12:00:00","01:00:00","13:00:00"),
               end = c("05:00:00","17:00:00",
                       "16:00:00","05:00:00","17:00:00")
)

y %>% 
  mutate(interval = paste(start, end)) %>% 
  group_by(interval) %>% 
  mutate(id = group_indices())

#> # A tibble: 5 x 4
#> # Groups:   interval [3]
#>   start    end      interval             id
#>   <chr>    <chr>    <chr>             <int>
#> 1 01:00:00 05:00:00 01:00:00 05:00:00     1
#> 2 13:00:00 17:00:00 13:00:00 17:00:00     3
#> 3 12:00:00 16:00:00 12:00:00 16:00:00     2
#> 4 01:00:00 05:00:00 01:00:00 05:00:00     1
#> 5 13:00:00 17:00:00 13:00:00 17:00:00     3
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