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When to use a “has_many :through” relation in Rails?
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You should use has_many :through if you need validations, callbacks, or extra attributes on the join model.
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Are there legitimate uses for JavaScript's “with” statement?
... to use with instead. The real problem is that even with a with as a let, extra care still has to be taken because of inherited properties of an object on the prototype chain. For example, var toString = function () { return "Hello"; }; with ({"test":1}) { console.log(toString()); };. In the scop...
What is the best practice for “Copy Local” and with project references?
...ripts are parametrized for both debug and release builds. The downside is extra time up front to build said scripts, but they can be reused across apps. This solution has worked well by my standards.
– jyoungdev
Jun 3 '10 at 18:48
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Has anyone ever got a remote JMX JConsole to work?
...e ports for RMI, and those are probably blocked by a firewall.
One of the extra ports will not be know up front if you use the default RMI configuration, so you have to open up a big range of ports - which might not amuse the server administrator.
There is a solution that does not require opening ...
Eager load polymorphic
...w you join a table named by the value stored in a column. By defining the extra relationship belongs_to :shop, you are giving ActiveRecord the information it needs to complete the join.
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How would Git handle a SHA-1 collision on a blob?
...0151210/block-sha1/sha1.c
@@ -246,6 +246,8 @@ void blk_SHA1_Final(unsigned char hashou
blk_SHA1_Update(ctx, padlen, 8);
/* Output hash */
- for (i = 0; i < 5; i++)
- put_be32(hashout + i * 4, ctx->H[i]);
+ for (i = 0; i < 1; i++)
+ put_be32(hashout + i * 4, (ctx->...
Overloading member access operators ->, .*
...ow is pointing at."
Bruce Eckel: Thinking CPP Vol-one : operator->
The extra functionality is provided for convenience, so you do not have to call
a->->func();
You can simply do:
a->func();
That makes operator -> different from the other operator overloads.
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How to override trait function and call it from the overridden function?
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An alternative approach if interested - with an extra intermediate class to use the normal OOO way. This simplifies the usage with parent::methodname
trait A {
function calc($v) {
return $v+1;
}
}
// an intermediate class that just uses the trait
class I...
git-diff to ignore ^M
...f, git show, etc.
It appears to leave other settings as-is; for instance, extra spaces at the end of a line still show as errors (highlighted in red) in the diff.
(Other answers have alluded to this, but the above is exactly how to set the setting. To set the setting for only one project, omit th...
innerText vs innerHTML vs label vs text vs textContent vs outerText
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text and label remove extra spaces. I got these results when querying options in a dropdown:
e.textContent = "A B C D "
e.text = "A B C D"
e.label = "A B C D"
s...