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Javascript switch vs. if…else if…else
...le states that there is a negligible performance difference between switch and if/then statements in JS. The article states this is due to spotty switch optimization and the different ways different JS engines function. Quote: Since most JavaScript engines don’t have such optimizations, performanc...
$.getJSON returning cached data in IE8
I'm playing around with ASP.net MVC and JQuery at the moment. I've come across behavour which doesn't seem to make sense.
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Reducing Django Memory Usage. Low hanging fruit?
My memory usage increases over time and restarting Django is not kind to users.
10 Answers
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Reading value from console, interactively
...p server with some console extension. I found the snippet to read from command line data.
15 Answers
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git undo all uncommitted or unsaved changes
...rying to undo all changes since my last commit. I tried git reset --hard and git reset --hard HEAD after viewing this post . I responds with head is now at 18c3773... but when I look at my local source all the files are still there. What am I missing?
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Why does the C++ map type argument require an empty constructor when using []?
..., among other things, they should be default-constructible.
Without this (and others requirements) it would be needlessly hard to implement the various internal copy/move/swap/compare operations on the data structures with which STL containers are implemented.
Upon reference to the C++ Standard, ...
Possible to iterate backwards through a foreach?
I know I could use a for statement and achieve the same effect, but can I loop backwards through a foreach loop in C#?
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How can I pass an argument to a PowerShell script?
...ould it be something like -step '15' or -step "15"
– Andrew Gray
Nov 2 '15 at 0:04
7
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Set line spacing
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Try the line-height property.
For example, 12px font-size and 4px distant from the bottom and upper lines:
line-height: 20px; /* 4px +12px + 4px */
Or with em units
line-height: 1.7em; /* 1em = 12px in this case. 20/12 == 1.666666 */
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Can a java file have more than one class?
...can. However, there can only be one public top-level class per .java file, and public top-level classes must have the same name as the source file.
The purpose of including multiple classes in one source file is to bundle related support functionality (internal data structures, support classes, etc...