1. Target a device by serial number
Use the -s option followed by a device name to select on which device the adb command should run.
The -s options should be first in line, before the command.
adb -s <device> <command>
Example:
adb devices
List of devices attached
emulator-55...
The IEnumerable<T> interface has a single method, GetEnumerator(), which returns an IEnumerator<T>.
While the yield keyword can be used to directly create an IEnumerable<T>, it can also be used in exactly the same way to create an IEnumerator<T>. The only thing that changes ...
The std::borrow::Borrow and std::borrow::BorrowMut traits are used to treat borrowed types like owned types. For types A and B,
impl Borrow<B> for A
indicates that a borrowed A may be used where a B is desired. For instance, std::collections::HashMap.get() uses Borrow for its get() method,...
-> Note: make sure you set up HStoreField first before going on with this example. (above)
No parameters are required for initializing a HStoreField.
from django.contrib.postgres.fields import HStoreField
from django.db import models
class Catalog(models.model):
name = models.C...
This simple CUDA program demonstrates how to write a function that will execute on the GPU (aka "device"). The CPU, or "host", creates CUDA threads by calling special functions called "kernels". CUDA programs are C++ programs with additional syntax.
To see how it works...
Data classes in kotlin are classes created to do nothing but hold data. Such classes are marked as data:
data class User(var firstname: String, var lastname: String, var age: Int)
The code above creates a User class with the following automatically generated:
Getters and Setters for all prope...
To add a method to a button, first create an action method:
Objective-C
-(void) someButtonAction{
NSLog(@"Button is tapped");
}
Swift
func someButtonAction() {
print("Button is tapped")
}
Now to add this action method to your button, you have to wri...
In contrast to segue that lets you pass data "forward" from current view controller to destination view controller:
(VC1) -> (VC2)
Using "unwind" you can do the opposite, pass data from the destination or current view controller to its presenting view controller:
(VC1) <...
This code compiles:
Integer arg = null;
int x = arg;
But it will crash at runtime with a java.lang.NullPointerException on the second line.
The problem is that a primitive int cannot have a null value.
This is a minimalistic example,
but in practice it often manifests in more sophisticated f...
A branch is just a pointer to a commit, so you can freely move it around. To make it so that the branch is referring to the commit aabbcc, issue the command
git reset --hard aabbcc
Please note that this will overwrite your branch's current commit, and as so, its entire history. You might loose s...
Enable USB Debugging on your device and from command line type adb devices. If everything is OK, the response should be:
List of devices attached
1234567890 device
Where 1234567890 is the device's id.
If multiple devices are connected, you should see all of them:
List of devices at...
Assuming this HTML in the page:
<body>
<div id="myPage">
</div>
</body>
A view can be bound to it with:
var MyPageView = Backbone.View.extend( {
"el": "#myPage",
"template": _.template( "<p>This is m...
db.posts.find().forEach(function(doc){
if(doc.oldfield){
// the false, true at the end refers to $upsert, and $multi, respectively
db.accounts.update({_id: doc._id}, {$unset: {'oldfield': "" }}, false, true);
}
});
CSS
div {
height: 200px;
width: 200px;
background: url(http://lorempixel.com/200/200/nature/1);
mask-image: linear-gradient(to right, white, transparent);
}
HTML
<div></div>
In the above example there is an element with an image as its background. The mask that is a...
zo opens a fold underneath the cursor.
zO opens all folds underneath the cursor, recursively.
zc closes a fold underneath the cursor.
zC closes all folds underneath the cursor, recursively.
za toggles a fold under the cursor (a closed fold is opened, an opened fold is closed).
zM closes all f...
