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Validate that a string is a positive integer
...t of the work.
str = str.replace(/^0+/, "") || "0"; removes all leading 0s from the string — but if that results in a blank string, restores a single 0.
Number(str): Convert str to a number; the number may well have a fractional portion, or may be NaN.
Math.floor: Truncate the number (chops off ...
SQL Server equivalent to MySQL enum data type?
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A better solution from a maintainability perspective than the check constraint shown above.
– HLGEM
Jun 21 '12 at 13:59
22
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Way to get number of digits in an int?
...it:
After I wrote the benchmark, I took a sneak peak into Integer.toString from Java 6, and I found that it uses:
final static int [] sizeTable = { 9, 99, 999, 9999, 99999, 999999, 9999999,
99999999, 999999999, Integer.MAX_VALUE };
// Requires positive x
static in...
What's wrong with Groovy multi-line String?
...the stripMargin method will trim the left (up to and including the | char) from each line
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Is it considered bad practice to perform HTTP POST without entity body?
I need to invoke a process which doesn't require any input from the user, just a trigger. I plan to use POST /uri without a body to trigger the process. I want to know if this is considered bad from both HTTP and REST perspectives?
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Limit Decimal Places in Android EditText
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What would stop me from inserting non numeric characters to the string such as 'a'?
– Konstantin Weitz
Jun 15 '11 at 0:44
4
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Does uninstalling a package with “pip” also remove the dependent packages?
...nose==1.1.2
pinocchio==0.3
As you can see those packages are dependencies from specloud and they're still there, but not the specloud package itself.
As mentioned below, You can install and use the pip-autoremove utility to remove a package plus unused dependencies.
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All falsey values in JavaScript
...all non-empty strings, including strings that are just whitespace
Anything from typeof, which always returns a non-empty string, for example:
typeof null (returns a string 'object' due to a longstanding bug/quirk)
typeof undefined (returns a string 'undefined')
Any object (except that "wilful vi...
How to set tbody height with overflow scroll
...width: calc( 100% - 1em )/* scrollbar is average 1em/16px width, remove it from thead width */
}
table {
width:400px;
}
If tbody doesn't show a scroll, because content is less than height or max-height, set the scroll anytime with : overflow-y:scroll;. DEMO 2
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Disable messages upon loading a package
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No net gain apart from spending X more characters. Plus suppressPackageStartupMessages suppresses only startup messages where as my preferred suppressMessages() suppresses any and all messages (but not cat() as I recall). But one is not supp...