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Using LINQ to concatenate strings
...bit slower, actually. Even using Aggregate with a StringBuilder instead of concatenation is slower than String.Join.
– Joel Mueller
May 7 '09 at 20:33
4
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google mock分享（全网最全最好的gmock文档，没有之一） - C/C++ - 清泛网 ...
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using namespace std;
using ::testing::Return;
int main(int argc, char** argv) {
::testing::InitGoogleMock(&argc, argv);
string value = "Hello World!";
MockFoo mockFoo;
EXPECT_CALL(mockFoo, getArbitraryString()).Times(1).
WillOnce(Retu...
How to display pandas DataFrame of floats using a format string for columns?
...ake_float)
Also, it can be easily used with multiple columns...
df = pd.concat([s, s * 2], axis=1)
make_floats = lambda row: "${:,.2f}, ${:,.3f}".format(row[0], row[1])
df.apply(make_floats, axis=1)
share
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How do you get the current project directory from C# code when creating a custom MSBuild task?
...wrong for my case. This is giving me */{project}/bin folder, so I need to concat a .parent.
– Captain Prinny
Aug 1 '19 at 13:48
1
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What's the opposite of chr() in Ruby?
... pair of functions, chr() and ord() , which convert between numbers and character values. In some languages, ord() is called asc() .
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How to get my IP address programmatically on iOS/macOS?
... @"ipv6"
- (NSString *)getIPAddress:(BOOL)preferIPv4
{
NSArray *searchArray = preferIPv4 ?
@[ /*IOS_VPN @"/" IP_ADDR_IPv4, IOS_VPN @"/" IP_ADDR_IPv6,*/ IOS_WIFI @"/" IP_ADDR_IPv4, IOS_WIFI @"/" IP_ADDR_IPv6, IOS_CELLULAR @"/" IP_ADDR_IPv4, IOS_CELLULAR @"/" IP_ADDR...
Should operator
... means something like:
// OUTPUT << Paragraph
template <typename charT, typename traits>
std::basic_ostream<charT,traits> & operator << (std::basic_ostream<charT,traits> & p_oOutputStream, const Paragraph & p_oParagraph)
{
// do the insertion of p_oParag...
Best way to format integer as string with leading zeros? [duplicate]
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I've chosen to concat the format string instead, inserting the length of a list for example. Are there any advantages of your way of doing it?
– Zelphir Kaltstahl
Aug 29 '15 at 10:19
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How to concatenate a std::string and an int?
...tm;
sstm << name << age;
result = sstm.str();
// 7. with itoa
char numstr[21]; // enough to hold all numbers up to 64-bits
result = name + itoa(age, numstr, 10);
// 8. with sprintf
char numstr[21]; // enough to hold all numbers up to 64-bits
sprintf(numstr, "%d", age);
result = name + ...
How to check if a String contains only ASCII?
The call Character.isLetter(c) returns true if the character is a letter. But is there a way to quickly find if a String only contains the base characters of ASCII?
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