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What does this symbol mean in JavaScript?
...is is a collection of questions that come up every now and then about syntax in JavaScript. This is also a Community Wiki, so everyone is invited to participate in maintaining this list.
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How to convert a string to an integer in JavaScript?
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The simplest way would be to use the native Number function:
var x = Number("1000")
If that doesn't work for you, then there are the parseInt, unary plus, parseFloat with floor, and Math.round methods.
parseInt:
var x = parseInt("1000", 10); // you want to use radix 10
// so you ge...
Pass a parameter to a fixture function
...est as others have noted pytest now supports indirect parametrization of fixtures. For example you can do something like this (via @imiric):
# test_parameterized_fixture.py
import pytest
class MyTester:
def __init__(self, x):
self.x = x
def dothis(self):
assert self.x
@p...
How to check if my string is equal to null?
...ontract:
From Object.equals(Object):
For any non-null reference value x, x.equals(null) should return false.
The way to compare with null is to use x == null and x != null.
Moreover, x.field and x.method() throws NullPointerException if x == null.
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C/C++ check if one bit is set in, i.e. int variable
... @Eduard: in C, everything != 0 is true, so why bother? 1 is exactly as true as 0.1415!
– Christoph
Feb 7 '09 at 13:39
1
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Linq Syntax - Selecting multiple columns
This is my Linq Syntax which I am using to my entity model
3 Answers
3
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How to find list intersection?
actual output: [1,3,5,6]
expected output: [1,3,5]
11 Answers
11
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Cast Int to enum in Java
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Try MyEnum.values()[x] where x must be 0 or 1, i.e. a valid ordinal for that enum.
Note that in Java enums actually are classes (and enum values thus are objects) and thus you can't cast an int or even Integer to an enum.
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CGContextDrawImage draws image upside down when passed UIImage.CGImage
Does anyone know why CGContextDrawImage would be drawing my image upside down? I am loading an image in from my application:
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iOS 7 parallax effect in my view controller
...in my app with a few buttons and a pretty background image. (It's a simple xib with UIButtons on top of a UIImageView .)
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