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Count how many records are in a CSV Python?
...e number of LINES in the csv file. But some CSV files will contain quoted strings which themselves contain newline characters. MS CSV files usually delimit records with \r\n, but use \n alone within quoted strings.
For a file like this, counting lines of text (as delimited by newline) in the file...
Parse email content from quoted reply
...olution will not work.
Likewise if the email client uses a different date string, or doesn't include a date string the regex will fail.
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Check if a class has a member function of a given signature
...value = type::value;
};
Usage:
struct X {
int serialize(const std::string&) { return 42; }
};
struct Y : X {};
std::cout << has_serialize<Y, int(const std::string&)>::value; // will print 1
sh...
What to do on TransactionTooLargeException
...== null) {
state = new Bundle();
}
String key = "f" + i;
mFragmentManager.putFragment(state, key, f);
}
}
return state;
}
As you can see, even if you properly manage the fragments in the FragmentStatePagerAdapter subclass, the bas...
Objective-C ARC: strong vs retain and weak vs assign
..." include an implicit "retain"
Example:
@property (nonatomic, retain) NSString *name;
@synthesize name;
4.assign
assign is the default and simply performs a variable assignment
assign is a property attribute that tells the compiler how to synthesize the property's setter implementation
I wo...
Javascript regex returning true.. then false.. then true.. etc [duplicate]
... (with exec, test etc.) the first time, you get the first match in a given string. Call them again and you get the next match, and so on until you get no match and it resets to the start of the next string. You can also write regex.lastIndex= 0 to reset this state.
(This is of course an absolutely ...
Objective-C categories in static library
... code directly referencing it, correct? Wrong! You can dynamically build a string containing a class name, request a class pointer for that name and dynamically allocate the class. E.g. instead of
MyCoolClass * mcc = [[MyCoolClass alloc] init];
I could also write
NSString * cname = @"CoolClass";...
How do I delete multiple rows in Entity Framework (without foreach)
... list of IDs, use a WHERE IN ({0}), and then the second argument should be String.Join(",", idList).
– Langdon
Jul 25 '16 at 22:06
...
Should I URL-encode POST data?
... that your POST body will need to be URL encoded just like a GET parameter string. A value of "multipart/form-data" means that you'll be using content delimiters and NOT url encoding the content.
This answer has a much more thorough explanation if you'd like more information.
Specific Answer
For a...
How to check if running in Cygwin, Mac or Linux?
...he system information (-s parameter).
Use expr and substr to deal with the string.
Use if elif fi to do the matching job.
You can add more system support if you want, just follow the uname -s specification.
Implementation
#!/usr/bin/env bash
if [ "$(uname)" == "Darwin" ]; then
# Do something...