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How to initialize a two-dimensional array in Python?
...By the way, [[foo]*10 for x in xrange(10)] can be used to get rid of one comprehension. The problem is that multiplication does a shallow copy, so new = [foo] * 10 new = [new] * 10 will get you a list containing the same list ten times.
– Scott Wolchok
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How do you simulate Mouse Click in C#?
... If the control doesn't have a PerformClick method, you can extend/add one, just needs to call OnMouseClick with a suitable MouseEventArgs argument.
– Tony Hopkinson
Apr 12 '18 at 22:46
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Java: How to convert List to Map
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With java-8, you'll be able to do this in one line using streams, and the Collectors class.
Map<String, Item> map =
list.stream().collect(Collectors.toMap(Item::getKey, item -> item));
Short demo:
import java.util.Arrays;
import java.util.List;
impo...
Understanding promises in Node.js
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Check also this github.com/medikoo/deferred , Q is one of the first and it's definitely inspiration to many implementations that appeared afterwards, but unfortunately it's very slow and too "theoretical" in some parts, it doesn't play well with some real world scenarios
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Requirejs why and when to use shim config
...t AMD, but you need to manage their dependencies. For example, in the Backbone and Underscore example above: you know that Backbone requires Underscore, so suppose you wrote your code like this:
require(['underscore', 'backbone']
, function( Underscore, Backbone ) {
// do something with Backbo...
What is an 'endpoint' in Flask?
... to take this URL, figure out what the user wants to do, and pass it on to one of your many python functions for handling. It takes the path:
/greeting/Mark
...and matches it to the list of routes. In our case, we defined this path to go to the give_greeting function.
However, while this is the ...
Synchronous request in Node.js
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sync-request
By far the most easiest one I've found and used is sync-request and it supports both node and the browser!
var request = require('sync-request');
var res = request('GET', 'http://google.com');
console.log(res.body.toString('utf-8'));
That's it, no ...
How can I tell when HttpClient has timed out?
... @testing They don't behave different. It is just that you have one token that will represent the user cancellation request and an internal (you cannot access and you don't need) that represents the client timeout. It is the use case that differs
– Sir Rufo
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How to use Session attributes in Spring-mvc
...want keep object during user session ,
There are some ways:
directly add one attribute to session:
@RequestMapping(method = RequestMethod.GET)
public String testMestod(HttpServletRequest request){
ShoppingCart cart = (ShoppingCart)request.getSession().setAttribute("cart",value);
return "tes...
When is TCP option SO_LINGER (0) required?
...nnection sitting in TIME_WAIT for several minutes. So if your protocol is one where the server initiates the connection close, and involves very large numbers of short-lived connections, then it might be susceptible to this problem.
This isn't a good idea, though - TIME_WAIT exists for a reason (t...