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Why should hash functions use a prime number modulus?
...e comes out to be a factor of the bucket count then you can only do (bucket_count / stride) probes before you're back where you started. The case you most want to avoid is stride = 0, of course, which must be special-cased, but to avoid also special-casing bucket_count / stride equal to a small inte...
How to get index in Handlebars each helper?
...hanged in the newer versions of Ember.
For arrays:
{{#each array}}
{{_view.contentIndex}}: {{this}}
{{/each}}
It looks like the #each block no longer works on objects. My suggestion is to roll your own helper function for it.
Thanks for this tip.
...
Difference between a “coroutine” and a “thread”?
...ot involved in the coroutine switches.
—http://www.boost.org/doc/libs/1_55_0/libs/coroutine/doc/html/coroutine/overview.html
A language that supports native threads can execute its threads (user threads) onto the operating system's threads (kernel threads). Every process has at least one kerne...
How to set default value for form field in Symfony2?
...
->add('myfield', 'text', array(
'label' => 'Field',
'empty_data' => 'Default value'
))
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How do I 'overwrite', rather than 'merge', a branch on another branch in Git?
...let me fix that without any conflicts.
If you want all changes from branch_new in branch_old, then:
git checkout branch_new
git merge -s ours branch_old
git checkout branch_old
git merge branch_new
once applied those four commands you can push the branch_old without any problem
...
Why have header files and .cpp files? [closed]
...e the main reason for existence of HPP files is explained above.
#ifndef B_HPP_
#define B_HPP_
// The declarations in the B.hpp file
#endif // B_HPP_
or even simpler
#pragma once
// The declarations in the B.hpp file
...
The term “Context” in programming? [closed]
...e is what is called "Context"
E.g.
Patient goes to doc and says treat_me ( "I have a headache" ) Doc
office gives the patient a form to fill. Patient fills form. The form
is used by the doctor to carry out the "treat_me" request.
Here is how the request now looks :
treat_me ( "i have a...
Invalid postback or callback argument. Event validation is enabled using '
... One more option: implement IPostBackEventHandler and call js __doPostBack('<%= UniqueId.ToString() %>',arg)
– gdbdable
May 22 '14 at 7:11
...
Click Event on UIImageView programmatically in ios
...wift 3
On UIImageView enable UserInterAction
override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
super.touchesEnded(touches, with: event)
if let touch = touches.first {
if touch.view == self.imgVwPostPreview { //image View property
...
structure vs class in swift language
...mple here code to understand well.
struct SomeStruct {
var a : Int;
init(_ a : Int) {
self.a = a
}
}
class SomeClass {
var a: Int;
init(_ a: Int) {
self.a = a
}
}
var x = 11
var someStruct1 = SomeStruct(x)
var someClass1 = SomeClass(x)
var someStruct2 = someStruct1
var someClass2 = so...