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How do I get the application exit code from a Windows command line?
...cial syntax:
if errorlevel
See if /? for details.
Example
@echo off
my_nify_exe.exe
if errorlevel 1 (
echo Failure Reason Given is %errorlevel%
exit /b %errorlevel%
)
Warning: If you set an environment variable name errorlevel, %errorlevel% will return that value and not the exit code. ...
Sending command line arguments to npm script
...pt invoked not via "npm run-script" but directly
var port = process.env.npm_package_config_myPort || 8080
That way, by default npm start will use 8080. You can however configure it (the value will be stored by npm in its internal storage):
npm config set myPackage:myPort 9090
Then, when invokin...
Git Blame Commit Statistics
...git-fame that might be useful.
Installation and usage:
$ gem install git_fame
$ cd /path/to/gitdir
$ git fame
Output:
Statistics based on master
Active files: 21
Active lines: 967
Total commits: 109
Note: Files matching MIME type image, binary has been ignored
+----------------+-----+-----...
JavaScript closure inside loops – simple practical example
...e best way to do this kind of thing now. There's also lo-dash/underscore's _.partial when you don't need or want to mess with bind's thisArg.
share
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How to find first element of array matching a boolean condition in JavaScript?
... its find and indexOf functions to get exactly what you want:
var index = _.indexOf(your_array, _.find(your_array, function (d) {
return d === true;
}));
Documentation:
http://underscorejs.org/#find
http://underscorejs.org/#indexOf
...
PHP/MySQL insert row then get 'id'
...
$link = mysqli_connect('127.0.0.1', 'my_user', 'my_pass', 'my_db');
mysqli_query($link, "INSERT INTO mytable (1, 2, 3, 'blah')");
$id = mysqli_insert_id($link);
See mysqli_insert_id().
Whatever you do, don't insert and then do a "SELECT...
MQTT物联网协议完全实践指南 · App Inventor 2 中文网
...载：
de.ullisroboterseite.ursai2pahomqtt.aix
完整示例项目：
mqtt_demo.aia
MQTT协议深度解析
1. 协议架构与通信模式
MQTT采用客户端-服务器架构，基于发布/订阅（Publish/Subscribe）模式实现消息传递：
grap...
Is there any way to hide “-” (Delete) button while editing UITableView
... equivalent to accepted answer with just the needed funcs:
func tableView(_ tableView: UITableView, shouldIndentWhileEditingRowAt indexPath: IndexPath) -> Bool {
return false
}
func tableView(_ tableView: UITableView, editingStyleForRowAt indexPath: IndexPath) -> UITableViewCellEditingSt...
Parsing domain from a URL
...
Check out parse_url():
$url = 'http://google.com/dhasjkdas/sadsdds/sdda/sdads.html';
$parse = parse_url($url);
echo $parse['host']; // prints 'google.com'
parse_url doesn't handle really badly mangled urls very well, but is fine if you g...
What is the difference between is_a and instanceof?
I am aware that instanceof is an operator and that is_a is a method.
9 Answers
9
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