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How can I trim leading and trailing white space?
...ing white spaces when you read your data file. If you use read.csv or read.table you can set the parameterstrip.white=TRUE.
If you want to clean strings afterwards you could use one of these functions:
# Returns string without leading white space
trim.leading <- function (x) sub("^\\s+", "", x)
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Checking if object is empty, works with ng-show but not from controller?
...support IE8 in the 1.3 (dev) branch, nor do they run tests for it on 1.2 (stable) docs.angularjs.org/guide/ie... Furthermore, the less we support IE8, maybe it will finally disappear. <insert corporate rebuttal>
– jaf0
Oct 27 '14 at 15:00
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Using MySQL with Entity Framework [closed]
...). They make a living writing providers, so I guess it should be fast and stable. I know really big companies using their Oracle provider instead of Orace and MS ones.
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How do I get Gridview to render THEAD?
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This should do it:
gv.HeaderRow.TableSection = TableRowSection.TableHeader;
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Daylight saving time and time zone best practices [closed]
...se location for systematic date-time conversion (say .NET culture or a SQL table) but provide a way for end-user to choose overrides if date-time is critical for your users.
If there are historical audit obligations involved (like telling exactly when Jo in AZ paid a bill 2 yrs ago in September) th...
How do I vertically align something inside a span tag?
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.container span {
height: 40px; /* image's height */
display: table-cell;
vertical-align: middle;
}
<span class="container">
<span>This is a centered sentence next to an image</span>
</span>
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Remove header and footer from window.print()
...nt, if the page have a long element that scrolls past one page (like a big table), the margin is ignored and the printed version will look weird.
At the time original of this answer (May 2013), it only worked on Chrome, not sure about it now, never needed to try again. If you need support for a bro...
Is there a way that I can check if a data attribute exists?
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if ($("#dataTable").data('timer')) {
...
}
NOTE this only returns true if the data attribute is not empty string or a "falsey" value e.g. 0 or false.
If you want to check for the existence of the data attribute, even if empty, do th...
Case-insensitive search in Rails model
... an Arel example of a case-insensitive search:
Product.where(Product.arel_table[:name].matches('Blue Jeans'))
The advantage of this type of solution is that it is database-agnostic - it will use the correct SQL commands for your current adapter (matches will use ILIKE for Postgres, and LIKE for e...
Accessing a Dictionary.Keys Key through a numeric index
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seems to not work with HashTable System.Collections.ICollection' does not contain a definition for 'ElementAt' and no extension method 'ElementAt' accepting a first argument of type 'System.Collections.ICollection' could be found
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