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Does Python have “private” variables in classes?
...names the variable.
class A:
def __init__(self):
self.__var = 123
def printVar(self):
print self.__var
Now, if you try to access __var outside the class definition, it will fail:
>>>x = A()
>>>x.__var # this will return error: "A has no attribute __var...
How was the first compiler written?
...ystem into a working system, complete with a disk-based bootstrap loader. Fun times. So yeah, you can hand-assemble just fine. It's slow and painful and error-prone (which is why we automated things) but it's possible.
– JUST MY correct OPINION
Apr 22 '10 at...
How do I initialize the base (super) class?
...e same thing as:
# super(C, self).method(arg)
https://docs.python.org/3/library/functions.html#super
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What is the best django model field to use to represent a US dollar amount?
..._places. This example setting would allow a value up to: 999,999.99
Docs: https://docs.djangoproject.com/en/1.10/ref/models/fields/#decimalfield
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Write a number with two decimal places SQL server
...ters to display, and the number of decimal places to display
Select Str(12345.6789, 12, 3)
displays: ' 12345.679' ( 3 spaces, 5 digits 12345, a decimal point, and three decimal digits (679). - it rounds if it has to truncate, (unless the integer part is too large for the total size, in whic...
What does “where T : class, new()” mean?
...gt;
where T : class, new()
{
}
class Checks
{
INewable<int> cn1; // ALLOWED: has parameterless ctor
INewable<string> n2; // NOT ALLOWED: no parameterless ctor
INewable<MyStruct> n3; // ALLOWED: has parameterless ctor
INewable<MyClass1> n4; // ALLOWED: has...
Declare a constant array
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
How do I programmatically click a link with javascript?
... can do that by simply doing this in Javascript :
location.href = "http://www.example.com/test";
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How to input a regex in string.replace?
... and outside character classes.) There is an excellent online tutorial at: www.regular-expressions.info. The time you spend there will pay for itself many times over. Happy regexing!
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jQuery deferreds and promises - .then() vs .done()
...tion (x) { // Suppose promise returns "abc"
console.log(x);
return 123;
}).then(function (x){
console.log(x);
}).then(function (x){
console.log(x)
})
The following results will get logged:
abc
123
undefined
While
promise.done(function (x) { // Suppose promise returns "abc"
...