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Simulate CREATE DATABASE IF NOT EXISTS for PostgreSQL?
...'t forget to back up the database first if you do care about the data. For testing situations though this is my preferred solution.
– Laryx Decidua
Mar 11 at 13:20
add a comme...
jQuery vs document.querySelectorAll
...lement("div"),
id = "__sizzle__";
div.innerHTML = "<p class='TEST'></p>";
// Safari can't handle uppercase or unicode characters when
// in quirks mode.
if ( div.querySelectorAll && div.querySelectorAll(".TEST").length === 0 ) {
return;
}
If th...
How are echo and print different in PHP? [duplicate]
...
you can echo(print('test')) but you cannot print(echo('test'))
– vdegenne
Jul 22 '16 at 20:13
|
...
How do I use Java to read from a file that is actively being written to?
... file, while reading this very same file every 2500 ms
public class TailerTest
{
public static void main(String[] args)
{
File f = new File("/tmp/test.txt");
MyListener listener = new MyListener();
Tailer.create(f, listener, 2500);
try
{
...
What is the minimum I have to do to create an RPM file?
...
Easy way to build rpm package from binary (these steps were tested with Fedora 18):
1) First you have to install rpmdevtools, so run these commands (attention: run as normal user)
$ sudo yum install rpmdevtools rpmlint
$ rpmdev-setuptree
2) In the ~/rpmbuild/SPECS folder create ne...
NSIS学习笔记（持续更新） - C/C++ - 清泛网 - 专注C/C++及内核技术
...---------------------------
!include logiclib.nsh
FindProcDLL::FindProc "Test.exe"
StrCmp $R0 1 0 +2
messagebox::show MB_SETFOREGROUND|MB_ICONHAND|MB_DEFBUTTON3|MB_TOPMOST "${PRODUCT_NAME}" "" \
'检测到程序正在运行，是否立即终止程序？$\n$\n\
【终止】终止程序，...
rails i18n - translating text with links inside
...ise "string_with_link: No place for __link__ given in #{str}" if Rails.env.test?
nil
end
end
In my en.yml:
log_in_message: "Already signed up? __Log in!__"
And in my views:
<p><%= string_with_link(t('.log_in_message'), login_path) %></p>
This way it's easier to transl...
How do I properly escape quotes inside HTML attributes?
...
&quot; is the correct way, the third of your tests:
<option value="&quot;asd">test</option>
You can see this working below, or on jsFiddle.
alert($("option")[0].value);
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.mi...
How can I add reflection to a C++ application?
...ot supported by C++ out of the box. This is sad because it makes defensive testing a pain.
There are several approaches to doing reflection:
use the debug information (non portable).
Sprinkle your code with macro's/templates or some other source approach (looks ugly)
Modify a compiler such as clang...
Passing a 2D array to a C++ function
...ich are more safer, cleaner and perhaps faster.
Here's a driver program to test the above functions:
#include <iostream>
// copy above functions here
int main()
{
int a[5][10] = { { } };
process_2d_array_template(a);
process_2d_array_pointer(&a); // <-- notice the unusu...