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how to check if List element contains an item with a Particular Property Value
How to check if element of pricePublicList contains certain value. To be more precise, I want to check if there exists pricePublicModel.Size == 200 ? Also, if this element exists, how to know which one it is?
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UIPopovercontroller dealloc reached while popover is still visible
I assure you that I did look for an answer in SO for my question but none of them were helpful. Here I got a simple code that should present a UIImagePickerController within a UIPopoverController :
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How to change the Push and Pop animations in a navigation based app
...of course, "crossfade" and "flip" are useless. They are never used. Nobody knows why Apple provided those two useless transitions!
So:
Say you want to do an ordinary, common, transition such as "slide". In that case, you have to do a HUGE amount of work!.
That work, is explained in this post.
Just t...
jQuery Validate Required Select
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You can test the selected text instead of value, like this: $.validator.addMethod("valueNotEquals", function(value, element, arg){ return return arg != jQuery(element).find('option:selected').text(); }, "Value must not equal arg.");
– Pablo S G Pachec...
Python: Why is functools.partial necessary?
...ng languages (those in the Lisp/Scheme families in particular) appear to like lambda just fine – I say "most", definitely not all, because Guido and I assuredly are among those "familiar with" (etc) yet think of lambda as an eyesore anomaly in Python...
He was repentant of ever having accepted it ...
Create tap-able “links” in the NSAttributedString of a UILabel?
... have been searching this for hours but I've failed. I probably don't even know what I should be looking for.
32 Answers
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TypeScript: problems with type system
...ById("mycanvas");
var ctx = canvas.getContext("2d");
or using dynamic lookup with the any type (no typechecking):
var canvas : any = document.getElementById("mycanvas");
var ctx = canvas.getContext("2d");
You can look at the different types in lib.d.ts.
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How do I catch a numpy warning like it's an exception (not just for testing)?
I have to make a Lagrange polynomial in Python for a project I'm doing. I'm doing a barycentric style one to avoid using an explicit for-loop as opposed to a Newton's divided difference style one. The problem I have is that I need to catch a division by zero, but Python (or maybe numpy) just makes i...
Failed to load resource: net::ERR_INSECURE_RESPONSE
IS there a way to trick the server so I don't get this error:
8 Answers
8
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What is the difference between an expression and a statement in Python?
...or () the subscription operator [] and similar, and can be reduced to some kind of "value", which can be any Python object. Examples:
3 + 5
map(lambda x: x*x, range(10))
[a.x for a in some_iterable]
yield 7
Statements (see 1, 2), on the other hand, are everything that can make up a line (or seve...