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Check whether an input string contains a number in javascript
...ion requires "contains number", not "is number". So:
function hasNumber(myString) {
return /\d/.test(myString);
}
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How to repeat a string a variable number of times in C++?
I want to insert 'n' spaces (or any string) at the beginning of a string in C++. Is there any direct way to do this using either std::strings or char* strings?
...
Effects of changing Django's SECRET_KEY
...the items listed here use SECRET_KEY through django.utils.crypt.get_random_string() which uses it to seed the random engine. This won't be impacted by a change in value of SECRET_KEY.
User experience directly impacted by a change of value are:
sessions, the data decode will break, that is valid f...
Is there a limit on how much JSON can hold?
...the "default is 2097152 characters, which is equivalent to 4 MB of Unicode string data" for the property JavaScriptSerializer.MaxJsonLength mentioned in Amber's answer. (N.B. I have quoted from MSDN)
– dumbledad
Dec 12 '12 at 20:38
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Simulating Slow Internet Connection
...answered Aug 21 '10 at 4:05
Philip RieckPhilip Rieck
31.3k99 gold badges8383 silver badges9595 bronze badges
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How to read a file in reverse order?
... while position >= 0:
qfile.seek(position)
next_char = qfile.read(1)
if next_char == "\n":
yield line[::-1]
line = ''
else:
line += next_char
position -= 1
yield line[::-1]
if __n...
Android - Set max length of logcat messages
... {
Log.v(TAG, "chunk " + i + " of " + chunkCount + ":" + sb.substring(4000 * i));
} else {
Log.v(TAG, "chunk " + i + " of " + chunkCount + ":" + sb.substring(4000 * i, max));
}
}
} else {
Log.v(TAG, sb.toString());
}
Edited to show the last string!
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How can I remove a trailing newline?
...uivalent of Perl's chomp function, which removes the last character of a string if it is a newline?
28 Answers
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How do I start Mongo DB from Windows?
...ith authentication.
mongo --username abcd --password abc123 --host server_ip_or_dns --port 27017
That's it !!!
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Tainted canvases may not be exported
...rom localStorage instead of loading from file or any url, then did some manipulation to it like adding a text. Then tried to sotre back it to localStorage using toDataURL(). But it shows "Failed to execute 'toDataURL' on 'HTMLCanvasElement': Tainted canvases may not be exported". In this case I am n...