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Get specific object by id from array of objects in AngularJS
...sion.
– Antonio E.
Jan 13 '15 at 13:02
1
By default javascript Array type has method find(). The ...
How to create a bash script to check the SSH connection?
...h -q user@downhost exit
$ echo $?
255
$ ssh -q user@uphost exit
$ echo $?
0
EDIT: Another approach would be to use nmap (you won't need to have keys or login-stuff):
$ a=`nmap uphost -PN -p ssh | grep open`
$ b=`nmap downhost -PN -p ssh | grep open`
$ echo $a
22/tcp open ssh
$ echo $b
(empty st...
How to convert JSON to CSV format and store in a variable
...thout any framework:
var json = json3.items
var fields = Object.keys(json[0])
var replacer = function(key, value) { return value === null ? '' : value }
var csv = json.map(function(row){
return fields.map(function(fieldName){
return JSON.stringify(row[fieldName], replacer)
}).join(',')
})
...
Tool to read and display Java .class versions
...s.java"
public class MyClass
SourceFile: "MyClass.java"
minor version: 0
major version: 46
...
To only show the version:
WINDOWS> javap -verbose MyClass | find "version"
LINUX > javap -verbose MyClass | grep version
...
How to create materialized views in SQL Server?
...kground:
Creating an Indexed View
Improving Performance with SQL Server 2008 Indexed Views
Basically, all you need to do is:
create a regular view
create a clustered index on that view
and you're done!
The tricky part is: the view has to satisfy quite a number of constraints and limitatio...
Use jQuery to change an HTML tag?
...l Fellows
115k1717 gold badges126126 silver badges190190 bronze badges
answered May 28 '09 at 1:33
mishacmishac
3,08911 gold badge...
How do I set up a basic Ruby project?
I want to create a small Ruby project with 10 ~ 20 classes/files. I need some gems and I want to use RSpec as test framework.
...
Setting the filter to an OpenFileDialog to allow the typical image formats?
...|
edited Sep 17 '19 at 14:04
Sebastian Brosch
35.1k1414 gold badges5555 silver badges6969 bronze badges
...
9个常用iptables配置实例 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...p发来的包丢弃：
BLOCK_THIS_IP="x.x.x.x"
iptables -A INPUT -i eth0 -p tcp -s "$BLOCK_THIS_IP" -j DROP
以上命令设置将由x.x.x.x ip发往eth0网口的tcp包丢弃。
4.配置服务项
利用iptables，我们可以对日常用到的服务项进行安全管理，比如设定只能...
Checking for NULL pointer in C/C++ [closed]
...
206
In my experience, tests of the form if (ptr) or if (!ptr) are preferred. They do not depend on ...