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Getting the count of unique values in a column in bash
...r each line of the combined input files
* Split the line into the @Fields array
* For every column, increment the result array-of-hashes data structure
In the top-level for loop:
* Loop over the result array
* Print the column number
* Get the values used in that column
* Sort the values by...
Parsing a comma-delimited std::string [duplicate]
...hat's the simplest way to parse out the numbers and put them in an integer array?
18 Answers
...
Creating a UICollectionView programmatically
...ew *)collectionView numberOfItemsInSection:(NSInteger)section
{
return Array.count;
}
- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *cellIdentifier = @"YourCustomCell";
YourCustomCell *cell =...
Are there any cases when it's preferable to use a plain old Thread object instead of one of the newe
...e more special classes.
In a similar vein, .NET doesn't forbid the use of arrays, despite List<T> being a better fit for many cases where people use arrays. Simply because you may still want to build things that are not covered by the standard lib.
...
Java Generate Random Number Between Two Given Values [duplicate]
...he random numbers from 0 to 100 (inclusive) to populate a multidimensional array; when trying this it populates the array with extremely large and extremely small numbers. For example, -3.76556749E8 3.0207573E8 2.033182079E9 -6.86227134E8.
– Mus
Mar 11 '11 at 1...
In C#, how to check if a TCP port is available?
...workInformation namespace.
Use the IPGlobalProperties object to get to an array of TcpConnectionInformation objects, which you can then interrogate about endpoint IP and port.
int port = 456; //<--- This is your value
bool isAvailable = true;
// Evaluate current system tcp connections. Th...
What did MongoDB not being ACID compliant before v4 really mean?
...example, I remove items from inventory and add them to a reservedInventory array of the same document using atomic modifiers.
This lets me always know that items are NOT available in the inventory (because they are reserved by a customer). When the customer check's out, I then remove the items f...
Best practices for reducing Garbage Collector activity in Javascript
...ll(42)
When you call a builtin that does any of these under the hood, like Array.prototype.slice.
When you use arguments to reflect over the parameter list.
When you split a string or match with a regular expression.
Avoid doing those, and pool and reuse objects where possible.
Specifically, look...
How to sort a list of lists by a specific index of the inner list?
...hink this answer is very important. I think people trying to sort by inner array indexes will fall here but people looking to sort by MULTIPLE inner array indexes will start here and your answer helped me see that itemgetter will actually do that for you!
– ZekeDroid
...
Best way to repeat a character in C#
...he original question), and the string.Concat answer above has to create an array first using Enumerable.Repeat. As I said, it's unnecessary overhead.
– midspace
Mar 26 '19 at 22:35
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