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What are some uses of decltype(auto)?
... The example that always prompts this disgust is the one-liner file-to-string syntax (also mentioned in that link). Every part of it seems backward. You might not expect ambiguity at all, and remove redundant parentheses from a sample compulsively; you would expect ambiguity to resolve by proces...
iterating over and removing from a map [duplicate]
...code sample to use the iterator in a for loop to remove the entry.
Map<String, String> map = new HashMap<String, String>() {
{
put("test", "test123");
put("test2", "test456");
}
};
for(Iterator<Map.Entry<String, String>> it = map.entrySet().iterator(); it.hasNex...
Checking if a string can be converted to float in Python
I've got some Python code that runs through a list of strings and converts them to integers or floating point numbers if possible. Doing this for integers is pretty easy
...
Why does Javascript's regex.exec() not always return the same value? [duplicate]
...be a very useful feature. You can start the evaluation at any point in the string if desired, or if in a loop, you can stop it after a desired number of matches.
Here's a demonstration of a typical approach to using the regex in a loop. It takes advantage of the fact that exec returns null when t...
What's the difference between dynamic (C# 4) and var?
...ng are 100% identical:
var s = "abc";
Console.WriteLine(s.Length);
and
string s = "abc";
Console.WriteLine(s.Length);
All that happened was that the compiler figured out that s must be a string (from the initializer). In both cases, it knows (in the IL) that s.Length means the (instance) strin...
数据挖掘——分词入门 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...词：
public class TestPositiveMatch {
public static void main(String[] args) {
String str = "我爱这个中华人民共和国大家庭";
List normalDict = new ArrayList();
normalDict.add("");
normalDict.add("爱");
normalDict.add("中华");...
Why do == comparisons with Integer.valueOf(String) give different results for 127 and 128?
...r.parseInt("123");
This returns an int primitive value after parsing the String.
Integer.valueOf("123");
This is more complex than the others. It starts off by parsing the String. Then, if the value is between -128 and 127, it returns the corresponding object from the static cache. If the va...
Using C# regular expressions to remove HTML tags
...express nested structures in a general way.
You could use the following.
String result = Regex.Replace(htmlDocument, @"<[^>]*>", String.Empty);
This will work for most cases, but there will be cases (for example CDATA containing angle brackets) where this will not work as expected.
...
Query-string encoding of a Javascript Object
Do you know a fast and simple way to encode a Javascript Object into a string that I can pass via a GET Request?
40 Ans...
java.nio.file.Path for a classpath resource
...API to get a classpath resource (e.g. what I'd get from Class.getResource(String) ) as a java.nio.file.Path ? Ideally, I'd like to use the fancy new Path APIs with classpath resources.
...