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autolayout - make height of view relative to half superview height
...ple:
First create a basic top alignment constraint (you will also need to setup bottom, left, and right constraints, like normal)
. Then select the constraint and navigate to the Attribute inspector:
Then you can adjust the multiplier. If you want it 50% of the super view leave it at 1, since it...
Is a Python list guaranteed to have its elements stay in the order they are inserted in?
...ent of the string are certainly permitted ("aaa" can exist and != "a").
A set is a collection of elements that cannot contain duplicates and has a non-definite order that may or may not change over time. Sets do not represent lists of things so much as they describe the extent of a certain selectio...
How to avoid using Select in Excel VBA
...e examples of how to avoid select
Use Dim'd variables
Dim rng as Range
Set the variable to the required range. There are many ways to refer to a single-cell range
Set rng = Range("A1")
Set rng = Cells(1,1)
Set rng = Range("NamedRange")
or a multi-cell range
Set rng = Range("A1:B10")
Set rng...
Calculate a Running Total in SQL Server
...full table then it will proceed in the order of the primary key. So if you set your date as a primary key ascending you will probably be safe. But you are relying on an undocumented SQL Server implementation detail (also if the query ends up being performed by two procs I wonder what will happen, se...
ALTER TABLE, set null in not null column, PostgreSQL 9.1
I have a table with not null column, How to set a null value in this column as default?
4 Answers
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JavaScript - cannot set property of undefined
...
you never set d[a] to any value.
Because of this, d[a] evaluates to undefined, and you can't set properties on undefined.
If you add d[a] = {} right after d = {} things should work as expected.
Alternatively, you could use an object...
Using smart pointers for class members
...ointed to by your (smart) pointer.
Is it going to be the instance of the Settings object alone? Will the Device object have to be destroyed automatically when the Settings object gets destroyed, or should it outlive that object?
In the first case, std::unique_ptr is what you need, since it makes...
Cell spacing in UICollectionView
How do I set cell spacing in a section of UICollectionView ? I know there is a property minimumInteritemSpacing I have set it to 5.0 still the spacing is not appearing 5.0. I have implemented the flowout delegate method.
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Where are my postgres *.conf files?
...values can be found in the PostgreSQL documentation.
#
# The commented-out settings shown in this file represent the default values.
# Re-commenting a setting is NOT sufficient to revert it to the default value;
# you need to reload the server.
#
# This file is read on server startup and when the se...
Set the selected index of a Dropdown using jQuery
How do I set the index of a dropdown in jQuery if the way I'm finding the control is as follows:
9 Answers
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