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Send message to specific client with socket.io and node.js
... var holder = new socketio.RedisStore; ^ TypeError: undefined is not a function at Object.<anonymous> (C:\Users\Dev\Desktop\nouty-server\server.js:108:14) at Module._compile (module.js:460:26) at Object.Module._extensions..js (module.js:478:10) at ...
What is the advantage to using bloom filters?
... additional linear
space overhead for pointers. A Bloom
filter with 1% error and an optimal
value of k, on the other hand,
requires only about 9.6 bits per
element — regardless of the size of
the elements. This advantage comes
partly from its compactness, inherited
from arrays, and...
Multiple arguments vs. options object
...xplicit documentation to specify intent, but it also leaves room for vague errors.
What if a developer modifies param1 in bar()? How long do you think it would take looking through a codebase of sufficident size to catch this?
Admittedly, this is example is slightly disingenuous because it assumes d...
How to sort with a lambda?
...in place of binding an instance method. However, the code above yields the error:
3 Answers
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How to reverse a singly linked list using only two pointers?
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I'm not sure about 'obvious errors' in the original. Design-wise, not passing the head of the list in and not returning the new head is a bad idea. The only bug, though, is the last line in the reverse() function should be setting first, I believe. O...
stash@{1} is ambiguous?
...
@sehe: The one Uncommon currently uses. The error message quoted indicates it quite clearly (no, it seems it can't be bash).
– Jan Hudec
Jun 24 '11 at 14:35
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What is the best method to merge two PHP objects?
...e to override all the relevant magic methods. You'll probably find syntax errors since I just entered it off the top of my head.
class Compositor {
private $obj_a;
private $obj_b;
public function __construct($obj_a, $obj_b) {
$this->obj_a = $obj_a;
$this->obj_b = $obj_b;
}
...
What is the Java ?: operator called and what does it do?
...th branches must lead to methods with return values:
It is a compile-time error for either the second or the third operand expression to be an invocation of a void method.
In fact, by the grammar of expression statements (§14.8), it is not permitted for a conditional expression to appear in any co...
How to avoid mysql 'Deadlock found when trying to get lock; try restarting transaction'
...can add this logic to your client code. (Say, 3 retries on this particular error before giving up).
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How do I reattach to a detached mosh session?
... In case, there is no old mosh session, xkill will throw an error. Better use pgrep mosh-server | grep -v $(ps -o ppid --no-headers $$) && xargs kill || echo "no active sessions to kill"
– rubo77
Nov 11 '19 at 8:44
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