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Insert into … values ( SELECT … FROM … )
...SERT from another table I did the following in SQLite3:
INSERT INTO column_1 ( val_1, val_from_other_table )
VALUES('val_1', (SELECT val_2 FROM table_2 WHERE val_2 = something))
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Using the HTML5 “required” attribute for a group of checkboxes?
...="checkbox-group required">
<input type="checkbox" name="checkbox_name[]">
<input type="checkbox" name="checkbox_name[]">
<input type="checkbox" name="checkbox_name[]">
<input type="checkbox" name="checkbox_name[]">
</div>
You can use this expressio...
What is the difference between JSON and Object Literal Notation?
...t
console.log('Object Literal : ', objLiteral ); // Object {foo: 42}foo: 42__proto__: Object
// This is a JSON String, like what you'd get back from an AJAX request.
var jsonString = '{"foo": 452}';
console.log('JOSN String : ', jsonString ); // {"foo": 452}
// This is how you deserialize that JSO...
Make sure that the controller has a parameterless public constructor error
... More like LousyErrorMessageException()
– Simon_Weaver
Dec 14 '18 at 0:24
What relevant places did you place the...
Breakpoint on property change
...al object
var obj = {
someProp: 10
};
// save in another property
obj._someProp = obj.someProp;
// overwrite with accessor
Object.defineProperty(obj, 'someProp', {
get: function () {
return obj._someProp;
},
set: function (value) {
debugger; // sets breakpoint
...
How to hash some string with sha256 in Java?
...onvert the string into bytes (e.g. using text.getBytes(StandardCharsets.UTF_8)) and then hash the bytes. Note that the result of the hash would also be arbitrary binary data, and if you want to represent that in a string, you should use base64 or hex... don't try to use the String(byte[], String) co...
Genymotion, “Unable to load VirtualBox engine.” on Mavericks. VBox is setup correctly
...s by installing VirtualBox 4.3.28 (https://www.virtualbox.org/wiki/Download_Old_Builds_4_3). The new 5.0.0 and 4.3.30 versions didn't work for me with Genymotion 2.5. None of the above solutions worked :(
It's also worth noting that at the time of writing, Genymotion's FAQ states the following:
...
What are some (concrete) use-cases for metaclasses?
...ate methods, than to do something like:
class PlottingInteractive:
add_slice = wrap_pylab_newplot(add_slice)
This method doesn't keep up with API changes and so on, but one that iterates over the class attributes in __init__ before re-setting the class attributes is more efficient and keeps t...
Reference requirements.txt for the install_requires kwarg in setuptools setup.py file
...w is to list all dependencies in setup.py and remove requirements.txt. For applications requiring both, simply reduce the dependency list in requirements.txt to merely the . character. Done.
– Cecil Curry
Jun 30 '16 at 5:40
...
Bad class file magic or version
...
my JAVA_HOME variable changed to Java 1.8 and I got this error message when compiling a pure java module as a dependency of my android project.
build.gradle of the java module
apply plugin: 'java'
Solution #1: Quick an dirty
I ...