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Hidden Features of PHP? [closed]
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@Phoexo "little bit less read-able" ??? I never understanded and will never understand MSDN, while PHP docs are easy and clear.
– lauriys
Feb 13 '10 at 12:13
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Python - write() versus writelines() and concatenated strings
...ites every item.
Edit: Another point you should be aware of:
write() and readlines() existed before writelines() was introduced. writelines() was introduced later as a counterpart of readlines(), so that one could easily write the file content that was just read via readlines():
outfile.writeline...
Difference between clustered and nonclustered index [duplicate]
...ce it is being stored in the same order as the clustered index itself. So, reading from a clustered index is generally faster than reading from a non-clustered index.
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Why does npm install say I have unmet dependencies?
...imilar problem with the error /usr/local/lib/node_modules/npm/node_modules/read-installed/node_modules/readdir-scoped-modules requires graceful-fs@'^4.1.2'
– wuliwong
Jul 6 '16 at 22:39
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iPhone Navigation Bar Title text color
...t doesn't cause the text to blend into shadow, which would be difficult to read.
I worked this out through trial and error, but the values I came up with are ultimately too simple for them not to be what Apple picked. :)
If you want to verify this, drop this code into initWithNibName:bundle: in Pa...
Does opacity:0 have exactly the same effect as visibility:hidden
...lement.)
According to philnash's answer, elements with opacity:0 are still read by screen readers, while visible:hidden elements are not.
According to Chris Noe's answer, visibility has more options (such as collapse) and elements that are not visible no longer respond to clicks and cannot be tabbed...
Populate data table from data reader
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You can load a DataTable directly from a data reader using the Load() method that accepts an IDataReader.
var dataReader = cmd.ExecuteReader();
var dataTable = new DataTable();
dataTable.Load(dataReader);
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How can I convert an image into a Base64 string?
...m using any I/O API
byte[] bytes;
byte[] buffer = new byte[8192];
int bytesRead;
ByteArrayOutputStream output = new ByteArrayOutputStream();
try {
while ((bytesRead = inputStream.read(buffer)) != -1) {
output.write(buffer, 0, bytesRead);
}
}
catch (IOException e) {
e.printStackT...
Convert number strings with commas in pandas DataFrame to float
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If you're reading in from csv then you can use the thousands arg:
df.read_csv('foo.tsv', sep='\t', thousands=',')
This method is likely to be more efficient than performing the operation as a separate step.
You need to set the lo...
What is a difference between
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So if I read it right, "<? extends E>" requires that "?" is a subclass of "E", and "<? super E>" requires that "E" is a subclass of "?", right?
– El Suscriptor Justiciero
Jun 26 '18 ...