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What is Ember RunLoop and how does it work?
...ues listed above, Ember only makes reference to the queue in their RunLoop test cases. It seems that such a queue would have been used in the SproutCore days based on some of the descriptions from the above articles about timers being the last thing to fire. In Ember, the timers queue isn't used. In...
An example of how to use getopts in bash
... local REQUIRED=$(get_required "${OPT_DESC}" | sed -e "s/\://g")
while test -n "${REQUIRED}"; do
OPTION=${REQUIRED:0:1}
VARNAME=$(get_variable_name_for_option "${OPT_DESC}" "${OPTION}")
[ -z "${!VARNAME}" ] && printf "ERROR: %s\n" "Option -${OPTION} must b...
What's the best way to communicate between view controllers?
...Finally, not only is your BookPickerController reusable but also easier to test.
-(void) testBookPickerController {
MockBookWarehouse *myWarehouse = [[MockBookWarehouse alloc]init];
MockCheckoutController *myCheckout = [[MockCheckoutController alloc]init];
BookPickerViewController *bookP...
What happens when a computer program runs?
...etely dependent on the platform which you're using. Consider the following test program:
#include <stdlib.h>
#include <stdio.h>
int main()
{
int stackValue = 0;
int *addressOnStack = &stackValue;
int *addressOnHeap = malloc(sizeof(int));
if (addressOnStack > addr...
Prototypical inheritance - writing up [duplicate]
...
It's good because it enables you and others to mock certain members for testing easily. It gives others a chance to easily improve (patch) your code but this is also bad because there is no guarantee that a next version of your code has the same implementation and or private members.
By using cl...
What Every Programmer Should Know About Memory?
...ops when it's worth have a look at the compiler's asm output: C++ code for testing the Collatz conjecture faster than hand-written asm?
– Peter Cordes
Apr 9 '19 at 7:31
add a ...
Draw a perfect circle from user's touch
...ased on that idea. See working demo below (Sorry, I'm using Java as the fastest way to provide this fast and a bit dirty example):
import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.HeadlessException;
...
正则表达式 30 分钟入门教程 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...请参考该页面的说明来安装和运行该软件。
下面是Regex Tester运行时的截图：
元字符
现在你已经知道几个很有用的元字符了，如\b,.,*，还有\d.正则表达式里还有更多的元字符，比如\s匹配任意的空白符，包括空格，制表符(Tab)...
Any reason why scala does not explicitly support dependent types?
...alue and type level code (like Haskell singletons) would be an interesting test for Scala's support of dependent types. Can such library be done much better in Scala because of path-dependent types?
I am too new to Scala to answer that question myself.
...
Why would I want stage before committing in Git?
...ll
# Make changes to these files
git add File3 File4
# Verify changes, run tests etc..
git commit -m 'Correct typos'
git push
In a nutshell, git add and git commit lets you break down a change to the main repository into systematic logical sub-changes. As other answers and comments have pointed ou...