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Gradients in Internet Explorer 9
...n odd situation that unfortunately front-end devs get extremely frustrated by: inconsistent timing on implementations. So it's a real challenge on either side - do you blame the browser companies, the W3C, or worse yet - yourself (goodness knows we can't know it all!) Do those of us who are working ...
What's the state of the art in email validation for Rails?
...ails 3. I'm kinda surprised that Rails doesn't include something like this by default.
http://github.com/balexand/email_validator
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Why is there no String.Empty in Java?
...ng.EMPTY
Array.length but List.size()
List.add(), Set.add() but Map.put(), ByteBuffer.put() and let's not forget StringBuilder.append(), Stack.push()
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Putty: Getting Server refused our key Error
...o you :) I did like you said and set this in sshd_conf:
LogLevel DEBUG3
By looking at the logs I realized that sshd reads the key correctly but rejects it because of the incorrect identifier.
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Intent - if activity is running, bring it to front, else start a new one (from notification)
.... With this you practically approach both issues you are having right now, by bringing the activity to the front all the time, and letting the OS automatically create a new one if no activity exists or bring to the front the currently existing activity (thanks to the singleInstance property).
This ...
JavaScript function to add X months to a date
...t; d.toISOString()
"2016-03-29T00:00:00.000Z"
Update for non-UTC dates: (by A.Hatchkins)
function addMonths (date, count) {
if (date && count) {
var m, d = (date = new Date(+date)).getDate()
date.setMonth(date.getMonth() + count, 1)
m = date.getMonth()
date.setDate(d)
...
How do I wait for an asynchronously dispatched block to finish?
...o work and will end up either causing deadlocks and/or killing the battery by nonstop polling.
In other words, rearrange your code so that there is no synchronous waiting for a result, but instead deal with a result being notified of change of state (eg callbacks/delegate protocols, being available...
Do you debug C++ code in Vim? How? [closed]
... is setting breakpoints from Vim.
edit and center
edit does not center Vim by default around the source, so I've created a Python script that does it: How to open the current file at the current line in a text editor from GDB?
Breakpoint command to clipboard helper
This vim command copies a breakpoi...
How can I configure my makefile for debug and release builds?
...
If by configure release/build, you mean you only need one config per makefile, then it is simply a matter and decoupling CC and CFLAGS:
CFLAGS=-DDEBUG
#CFLAGS=-O2 -DNDEBUG
CC=g++ -g3 -gdwarf2 $(CFLAGS)
Depending on whether yo...
How can I check if a URL exists via PHP?
...esponse might take time and block code execution.
Not all headers returned by get_headers() are well formed.
Use curl (if you can).
Prevent fetching the entire body/content, but only request the headers.
Consider redirecting urls:
Do you want the first code returned?
Or follow all redirects and retu...