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When should I use perror(“…”) and fprintf(stderr, “…”)?
Reading the man pages and some code did not really help me in
understanding the difference between - or better, when I should use - perror("...") or fprintf(stderr, "...") .
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How to use JavaScript source maps (.map files)?
...js.map extension shipped with some JavaScript libraries (like Angular ), and that just raised few questions in my head:
5...
Search for “does-not-contain” on a DataFrame in pandas
I've done some searching and can't figure out how to filter a dataframe by df["col"].str.contains(word) , however I'm wondering if there is a way to do the reverse: filter a dataframe by that set's compliment. eg: to the effect of !(df["col"].str.contains(word)) .
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Git - working on wrong branch - how to copy changes to existing topic branch
...orking on a project, but unfortunately, I forgot to switch to my branch, and as such have been working on master
4 Answer...
Casperjs/PhantomJs vs Selenium
... have seen majority of our users using Chrome. So we wanted to know - pros and cons of using PhantomJS vs Selenium:
5 Answe...
How to simulate a touch event in Android?
How to simulate a touch event with Android while giving the X and Y coordinates manually?
7 Answers
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Best way to check if a Data Table has a null value in it
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Try comparing the value of the column to the DBNull.Value value to filter and manage null values in whatever way you see fit.
foreach(DataRow row in table.Rows)
{
object value = row["ColumnName"];
if (value == DBNull.Value)
// do something
else
// do something else
}
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PHP code to remove everything but numbers
...9]/', '', '604-619-5135');
preg_replace uses PCREs which generally start and end with a /.
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Git push/clone to new server
I'm just learning Git and there is something I can't work out. After creating and using a git repository locally on my Mac, can I push a copy to another server somewhere else? I am behind a firewall so unfortunately I can't run git clone from the other machine.
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Convert SVG to image (JPEG, PNG, etc.) in the browser
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If the browser supports SVG and canvas, then there would be a much simpler way to load the SVG into memory and then paint it into a canvas, without the need for Canvg, which is a pretty large library because it handles all the SVG parsing that an SVG-su...