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Why do we use __init__ in Python classes?
...tions) available to the object.
However, notice that you don't set colour for the doghood itself - it's an abstract concept. There are attributes that make sense on classes. For instance, population_size is one such - it doesn't make sense to count the Fido because Fido is always one. It does make ...
Get a random item from a JavaScript array [duplicate]
... var items = ["a","e","i","o","u"] var objResults = {} for(var i = 0; i < 1000000; i++){ var randomElement = items[Math.floor(Math.random()*items.length)] if (objResults[randomElement]){ objResults[randomElement]++ }else{ ...
MDI CDockablePane使用总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...架类的头文件中定义一个CDockablePane的数组
CDockablePane m_Panes[5];//一个CDockablePane的数组
2. CFrameWndEx:: OnCreate() 在Create函数中自动生成了以下代码，对MFC比较熟悉的这里就不讲了：
CMFCPopupMenu::SetForceMenuFocus(FALSE);
InitUserToolbars(N...
Can Python print a function definition?
...
That seems to be what I was looking for. Thanks!
– Eddie Welker
Oct 14 '09 at 13:18
9
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Convert a row of a data frame to vector
...he one-row data frame to a numeric vector without dropping the names. Therefore unname(unlist(df[1,])) is another, slightly more explicit way to get to the same result.
As @Josh comments below, if you have a not-completely-numeric (alphabetic, factor, mixed ...) data frame, you need as.character(df...
How to call C from Swift?
...Basically, the C types, C pointers, etc are translated into Swift objects, for example a C int in Swift is a CInt.
I've build a tiny example, for another question, which can be used as a little explanation, on how to bridge between C and Swift:
main.swift
import Foundation
var output: CInt = 0
g...
Android - Camera preview is sideways
... how I implement it:
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
if (isPreviewRunning) {
mCamera.stopPreview();
}
Parameters parameters = mCamera.getParameters();
Display display = ((WindowManager)getSystemService(WINDOW...
Exploitable PHP functions
I'm trying to build a list of functions that can be used for arbitrary code execution. The purpose isn't to list functions that should be blacklisted or otherwise disallowed. Rather, I'd like to have a grep -able list of red-flag keywords handy when searching a compromised server for back-doors.
...
get and set in TypeScript
I'm trying to create get and set method for a property:
9 Answers
9
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Efficient Algorithm for Bit Reversal (from MSB->LSB to LSB->MSB) in C
...e256[p[3]];
You can extend this idea to 64-bit ints, or trade off memory for speed (assuming your L1 Data Cache is large enough), and reverse 16 bits at a time with a 64K-entry lookup table.
Others
Simple
unsigned int v; // input bits to be reversed
unsigned int r = v & 1; // r will b...