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How to get elements with multiple classes
...document.getElementsByClassName("class1 class2");
var list = document.querySelectorAll(".class1.class2");
OR (at least one class)
var list = document.querySelectorAll(".class1,.class2");
XOR (one class but not the other)
var list = document.querySelectorAll(".class1:not(.class2),.class2:not(.c...
Check if OneToOneField is None in Django
...fortunately, this doesn't work all the time. In case you want to work with select_related() now or in the future -- or maybe even to be sure you also handle other sorts of magic which may happen elsewhere -- you have to extend the test as follows: if hasattr(object, 'onetoonerevrelattr') and object....
How to get ERD diagram for an existing database?
...t that up in Manage, in which case all your databases will be available to select in step 3)
Import all objects (it will warn that you are importing to the current model, which is fine since it is empty).
Now switch back to the Design tab to see your ERD.
...
What does the thread_local mean in C++11?
...
this would mess it up: while (something) { char *next = strtok(whatever); someFunction(next); // someFunction calls strtok }
– japreiss
Jun 25 '14 at 20:18
...
Is it possible to open a Windows Explorer window from PowerShell?
...tion looking for a way to open an Explorer window from PowerShell and also select a file. I'm adding this answer in case others come across it for the same reason.
To launch Explorer and select a file, use Invoke-Expression:
Invoke-Expression "explorer '/select,$filePath'"
There are probably oth...
How can I view the shared preferences file using Android Studio?
...in. 4. Start Android Emulator (in my case API 24) 5. Launch stetho-sample (select it from run configuration menu next to green arrow 6. On your PC open latest Chrome browser 7. go by chrome://inspect address 8. chose your emulator in list. 9. In opened window go to Resources tab. 10. Find your share...
Android selector & text color
...or/button_dark_text.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true"
android:color="#000000" /> <!-- pressed -->
<item android:state_focused="true"
...
How can you use an object's property in a double-quoted string?
...ument mode (see about_Parsing). Commands are parsed into tokens (groups of characters forming a meaningful string). Space separates tokens that would merge but is otherwise ignored. If the command's 1st token is a number, variable, statement keyword (if, while, etc), unary operator, {, etc... then t...
How to easily initialize a list of Tuples?
..." }, new Hold { Id = 2, Name = "You" } };
var anonymousProjections = holds.Select(x => new { SomeNewId = x.Id, SomeNewName = x.Name });
var namedTuples = holds.Select(x => (TupleId: x.Id, TupleName: x.Name));
Reuse the tuples later with grouping methods or use a method to construct the...
Android custom dropdown/popup menu
... android:paddingEnd="10dip">
<ImageView
android:id="@+id/shoe_select_icon"
android:layout_width="30dp"
android:layout_height="30dp"
android:layout_gravity="center_vertical"
android:scaleType="fitXY" />
<TextView
android:id="@+id/shoe_select_text"
android:l...