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How to check a not-defined variable in JavaScript
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the second code can be shortened to: if(!typeof(XX)){ ... }else{ ... }
– Alejandro Silva
Jun 6 '14 at 21:53
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java.net.ConnectException: Connection refused
...u can use ipconfig command on cmd
you will get IPv4 something like 192.68.xx.yy
Voila ..that's your machine's IP where you have your server hosted.
use it then instead of localhost
http://192.168.72.66/my_api/login.php
Note - you won't be able to reach this private IP from any node outside this...
How to stop mongo DB in one command
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it seems it is not working for newer versions, from 2.4.xx to latest.
– alexserver
Jun 7 '14 at 6:20
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Convert datetime to Unix timestamp and convert it back in python
...es; It is already written, tested, pypi-published, cross-python (2.6 — 3.xx).
All you need: pip install arrow (or add to dependencies)
Solution for your case
dt = datetime(2013,9,1,11)
arrow.get(dt).timestamp
# >>> 1378033200
bc = arrow.get(1378033200).datetime
print(bc)
# >>&g...
When does System.gc() do something?
...s actually possible to disable explicit System.gc() via the java argument -XX:+DisableExplicitGC.
I'd highly recommend reading through the documents available at Java HotSpot Garbage Collection for more in depth details about garbage collection.
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How to show a GUI message box from a bash script in linux?
...up, window title, button label.
zenity \
--info \
--text="<span size=\"xx-large\">Time is $(date +%Hh%M).</span>\n\nGet your <b>coffee</b>." \
--title="Coffee time" \
--ok-label="Sip"
gxmessage
gxmessage "my text"
xmessage
xmessage is very old so it is stable and proba...
Where to store global constants in an iOS application?
...ECT-Prefix.pch file.
#define BASEURl @"http://myWebService.appspot.com/xyz/xx"
then anywhere in project to use BASEURL:
NSString *LOGIN_URL= [BASEURl stringByAppendingString:@"/users/login"];
Updated:
In Xcode 6 you will not find default .pch file created in your project. So please use PCH File ...
一文讲透区块链技术原理 - 资讯 - 清泛网 - 专注C/C++及内核技术
...新交易的传播都采用分布式的结构，根据P2P网络层协议，消息由单个节点被直接发送给全网其他所有的节点。
区块链技术让数据库中的所有数据均存储于系统所有的电脑节点中，并实时更新。完全去中心化的结构设置使数据能...
Laravel requires the Mcrypt PHP extension
...=/Applications/AMPPS/php-5.4/bin:$PATH ...assuming you're shooting for 5.4.xx, there's also 5.3 and 5.5 in there.
– Joel Mellon
Dec 19 '13 at 17:04
6
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How can one check to see if a remote file exists using PHP?
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@Lyth 3XX retcodes aren't an error, but a redirection. Those should be either handled manually or using CURLOPT_FOLLOWLOCATION.
– Ramon Poca
Oct 14 '13 at 14:48
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