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Last iteration of enhanced for loop in java
...n't use "" + i, by the way - you don't really want concatenation here, and StringBuilder has a perfectly good append(int) overload.)
int[] array = {1, 2, 3...};
StringBuilder builder = new StringBuilder();
for (int i : array) {
if (builder.length() != 0) {
builder.append(",");
}
...
What's the cleanest way of applying map() to a dictionary in Swift?
... = ["foo": 1, "bar": 2, "baz": 5]
let tupleArray = dictionary.map { (key: String, value: Int) in
return (key, value + 1)
}
//let tupleArray = dictionary.map { ($0, $1 + 1) } // also works
let newDictionary = Dictionary(uniqueKeysWithValues: tupleArray)
print(newDictionary) // prints: ["baz": ...
What is the list of possible values for navigator.platform as of today? [closed]
...roperty is sent by the browser and can thus be faked, just like user agent strings. Never rely on the navigator object to be completely accurate.
The definition
As far as I know there isn't a single public list of all possible `navigator.platform` values, even though the property has been around for...
How to limit the amount of concurrent async I/O operations?
... client = new HttpClient();
var html = await client.GetStringAsync(url);
}
finally
{
throttler.Release();
}
}));
}
// won't get here until all urls have been put into tasks
...
What is the pythonic way to detect the last element in a 'for' loop?
...t depends on what you are trying to do. For example, if you are building a string from a list, it's naturally better to use str.join() than using a for loop “with special case”.
Using the same principle but more compact:
for i, line in enumerate(data_list):
if i > 0:
between_i...
CSV API for Java [closed]
...'ve used OpenCSV in the past.
import au.com.bytecode.opencsv.CSVReader;
String fileName = "data.csv";
CSVReader reader = new CSVReader(new FileReader(fileName ));
// if the first line is the header
String[] header = reader.readNext();
// iterate over reader.readNext until it returns null
String[...
Is it expensive to use try-catch blocks even if an exception is never thrown?
...
Let's measure it, shall we?
public abstract class Benchmark {
final String name;
public Benchmark(String name) {
this.name = name;
}
abstract int run(int iterations) throws Throwable;
private BigDecimal time() {
try {
int nextI = 1;
i...
Add only non-whitespace changes
...l - its only special characters are ", \, \n, and ; (outside of a "-quoted string). This is why a " must always be escaped, even if it looks like it's inside a single-quoted string (which git is completely agnostic about).
This is important, eg. if you have a handy alias to execute a bash command i...
Adding a directory to $LOAD_PATH (Ruby)
...
Also, it's a lot harder to Google for strings like "$:" that contain only symbols.
– DSimon
Apr 19 '12 at 3:39
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How do I have an enum bound combobox with custom string formatting for enum values?
In the post Enum ToString , a method is described to use the custom attribute DescriptionAttribute like this:
21 Answers...