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How to create a hash or dictionary object in JavaScript [duplicate]
...y Objects. That syntax implicitly casts the subscript value to a primitive string or symbol. Maps support any values as keys, so you must use the methods .get(key), .set(key, value) and .has(key).
var m = new Map();
var key1 = 'key1';
var key2 = {};
var key3 = {};
m.set(key1, 'value1');
...
Getting a random value from a JavaScript array
... When using typescript: Be aware that the return type would be "string | undefined" instead of "string" given a string array.
– Stephan Schielke
May 6 at 18:18
add ...
What is the difference between Culture and UICulture?
...Console.WriteLine(date); // 02.01.2000 00:00:00
Console.WriteLine(number.ToString("C")); // 12.345,68 €
Thread.CurrentThread.CurrentCulture = new CultureInfo("fr-CA");
Console.WriteLine(date); // 2000-01-02 00:00:00
Console.WriteLine(number.ToString("C")); // 12 345,68 $
Thread.CurrentThread.Cur...
How to parse XML in Bash?
...g:
<tag>value</tag>
The first call to read_dom get an empty string (since the '<' is the first character). That gets split by IFS into just '', since there isn't a '>' character. Read then assigns an empty string to both variables. The second call gets the string 'tag>value'....
What are “res” and “req” parameters in Express functions?
...er or not it's able to understand HTTP compression, etc.
An array of query string parameters if there were any, in request.query (e.g. /people.json?foo=bar would result in request.query.foo containing the string "bar").
To respond to that request, you use the response object to build your response...
Python + Django page redirect
...manentRedirect('/nice-link')),
)
A target can be a callable as well as a string, which is what I'm using here.
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Best practice for instantiating a new Android Fragment
...ent.
Bundle args = new Bundle();
args.putInt("someInt", someInt);
args.putString("someString", someString);
// Put any other arguments
myFragment.setArguments(args);
Its a good way to tell other classes what arguments it expects to work faithfully(though you should be able to handle cases if no ar...
Can I incorporate both SignalR and a RESTful API?
...Controller : HubController<ToDoListHub>
{
private static List<string> _items = new List<string>();
public IEnumerable<string> Get()
{
return _items;
}
public void Post([FromBody]string item)
{
_items.Add(item);
// Call add on ...
原子vector的一种实现源码(atomic-vector) - C/C++ - 清泛网 - 专注C/C++及内核技术
...ATOMIC_VECTOR_H
#include <atomic>
#include <memory>
//#include "folly/String.h"
//#include "trace.h"
#define FTRACE(...) do { } while (0)
#define TRACE_SET_MOD(name)
namespace HPHP {
/*
* AtomicVector is a simple vector intended for use by many concurrent readers
* and writers....
Does the 'mutable' keyword have any purpose other than allowing the variable to be modified by a con
...l state such as a cache. For example:
class HashTable
{
...
public:
string lookup(string key) const
{
if(key == lastKey)
return lastValue;
string value = lookupInternal(key);
lastKey = key;
lastValue = value;
return value;
}
priv...