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How to index into a dictionary?
...r data set, you can just set the value of dictionary to that Index!:
Just watch:
list = ['a', 'b', 'c']
dictionary = {}
counter = 0
for i in list:
dictionary[i] = counter
counter += 1
print(dictionary) # dictionary = {'a':0, 'b':1, 'c':2}
Now through the power of hashmaps you can pull the...
Redis消息通知系统的实现 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...}
private function zsetPop($zset, $position)
{
$this->watch($zset);
$element = $this->zRange($zset, $position, $position);
if (!isset($element[0])) {
return false;
}
if ($this->multi()->zRem($zset, $element[0])->exec()) {
...
How to do exponentiation in clojure?
...
classic recursion (watch this, it blows stack)
(defn exp [x n]
(if (zero? n) 1
(* x (exp x (dec n)))))
tail recursion
(defn exp [x n]
(loop [acc 1 n n]
(if (zero? n) acc
(recur (* x acc) (dec n)))))
functional...
Git - Undo pushed commits
... but is recommended to avoid updating all branches with update flag).
!! watch-out some tags may still be pointing removed commit !! how-to-delete-a-remote-tag
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...
Tablix: Repeat header rows on each page not working - Report Builder 3.0
...his video shows how to set it exactly as the answer described: youtube.com/watch?v=WAO819-gkKw
– shrimp rice
Oct 9 '13 at 16:11
8
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What is the best testing framework to use with Node.js? [closed]
...
Few more libs that could help you write better code are those:
ReadyJS watches your js files and test them with JSHint
Concrete small continuous integration server
Jezebel continuous testing for Jasmine
Nosey not quite there but have a nice roadmap so I keep an eye on it
There is also Bamboo C...
Ways to implement data versioning in MongoDB
...eates documents with "buffer space" to handle this type of change. It also watches how documents in a collection change and modifies the buffer size for each collection. So MongoDB is designed for exactly this type of change (add new property / push to array).
– Gates VP
...
Is there a real solution to debug cordova apps [closed]
...sn't debugger, it allows only DOM inspections, you can't debug js and even watch console messages
– Bogdan Mart
Jun 21 '15 at 8:28
20
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MySQL Error 1093 - Can't specify target table for update in FROM clause
...ry
table, so it doesn't count as the same table you're updating.
... but watch out for the query optimiser
However, beware that from MySQL 5.7.6 and onward, the optimiser may optimise out the subquery, and still give you the error. Luckily, the optimizer_switch variable can be used to switch off...
WKWebView in Interface Builder
...e started the answer with “You can't create WKWebView from IB" :) But I watch the session video “Introducing the Modern WebKit API" from WWDC and they are using Xcode so I guess that this is just something that isn’t available to us at the moment.
– Johan
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