(C-x means ctrl+x, M-x means alt+x)
The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf
:
{ | |
"USD": { | |
"symbol": "$", | |
"name": "US Dollar", | |
"symbol_native": "$", | |
"decimal_digits": 2, | |
"rounding": 0, | |
"code": "USD", | |
"name_plural": "US dollars" | |
}, |
Magic words:
psql -U postgres
Some interesting flags (to see all, use -h
or --help
depending on your psql version):
-E
: will describe the underlaying queries of the \
commands (cool for learning!)-l
: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)// Creates a UIColor from a Hex string. | |
func colorWithHexString (hex:String) -> UIColor { | |
var cString:String = hex.stringByTrimmingCharactersInSet(NSCharacterSet.whitespaceAndNewlineCharacterSet()).uppercaseString | |
if (cString.hasPrefix("#")) { | |
cString = cString.substringFromIndex(1) | |
} | |
if (countElements(cString) != 6) { | |
return UIColor.grayColor() |
(by @andrestaltz)
If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.
In iOS8, Apple has changed how geo location permissions work. This gist outlines an approach to fix this so Geo will continue to work in iOS8.
Before getting started with the code change, we need to update the tiapp.xml with a few keys.
If you wish to have Geo always run, you need to add the below key. The key NSLocationAlwaysUsageDescription is used when requesting permission to use location services whenever the app is running. To enable this, add the below to the tiapp.xml:
NSLocationAlwaysUsageDescription Reason that appears in the authorization prompt
let rx_request = Observable<Value>.create { (observer) -> Disposable in | |
let requestReference = Alamofire.request(.POST, url, parameters: payload) | |
.responseJSON(completionHandler: { (response) in | |
if let value = response.result.value { | |
observer.onNext(value) | |
observer.onCompleted() | |
}else if let error = response.result.error { | |
observer.onError(error) | |
} | |
}) |
Source: https://www.youtube.com/watch?v=k_KlQ_Q-7cU
An Entrepreneur is someone who solves problems through scalable solutions.
#!/bin/bash | |
ADB_PATH="/Users/lee/Library/Android/sdk/platform-tools" | |
PACKAGE_NAME="com.yourcompany.app" | |
DB_NAME="default.realm" | |
DESTINATION_PATH="/Users/lee/Downloads/${DB_NAME}" | |
NOT_PRESENT="List of devices attached" | |
ADB_FOUND=`${ADB_PATH}/adb devices | tail -2 | head -1 | cut -f 1 | sed 's/ *$//g'` | |
if [[ ${ADB_FOUND} == ${NOT_PRESENT} ]]; then | |
echo "Make sure a device is connected" | |
else |
Apple will reject apps that are using private url schemes (Ugh, Apple....) if they are pretty much obvius. Some apps are rejected and others are not, so, be aware of this issue before implementing any of those URL's in your app as a feature.