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IF… OR IF… in a windows batch file
...r variable. The code has begun to look a bit "ugly", but I think it is the best performing reliable method for testing if VAR is any one of an arbitrary number of case-insensitive options.
Finally there is a simpler version that I think is slightly slower because it must perform one IF for each valu...
Python - Create a list with initial capacity
...he same thing, hence haven't actually tested the subject of this question. Best regards!
– Jonathan Hartley
Jul 16 '10 at 8:41
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I want to exception handle 'list index out of range.'
...n a shorter way:
gotdata = len(dlist)>1 and dlist[1] or 'null'
But for best performance, I suggest using False instead of 'null', then a one line test will suffice:
gotdata = len(dlist)>1 and dlist[1]
share
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Stopping a CSS3 Animation on last frame
...
The best way seems to put the final state at the main part of css. Like here, i put width to 220px, so that it finally becomes 220px. But starting to 0px;
div.menu-item1 {
font-size: 20px;
border: 2px solid #fff;
width: 22...
To underscore or to not to underscore, that is the question
...
It's mostly a "best practices" kind of thing. As the rule states, prefixing with "this" can be applied to any non-static member while prefixing with anything else may not be applicable due to language syntax rules. The "this" keyword makes...
How to Right-align flex item?
... I don't see this being a correct answer if you wan't to align just one item in a flex container.
– Foxhoundn
Jan 22 '19 at 0:01
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show 4...
dpi value of default “large”, “medium” and “small” text views android
...k directory.
In \platforms\android-X\data\res\values\themes.xml:
<item name="textAppearanceLarge">@android:style/TextAppearance.Large</item>
<item name="textAppearanceMedium">@android:style/TextAppearance.Medium</item>
<item name="textAppearanceSmall">@and...
How to make an empty div take space
...
min-height is the best solution
– Vall3y
Jan 10 '16 at 17:11
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How to efficiently build a tree from a flat structure?
...gt; lookup.Add(x.ID, new Node { AssociatedObject = x }));
foreach (var item in lookup.Values) {
Node proposedParent;
if (lookup.TryGetValue(item.AssociatedObject.ParentID, out proposedParent)) {
item.Parent = proposedParent;
proposedParent.Children.Add(ite...
How do I use itertools.groupby()?
...is a vehicle.
In this example, things is a list of tuples where the first item in each tuple is the group the second item belongs to.
The groupby() function takes two arguments: (1) the data to group and (2) the function to group it with.
Here, lambda x: x[0] tells groupby() to use the first item i...