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Can't use Swift classes inside Objective-C
...alling code)
SwiftClass *obj = [[SwiftClass alloc] initWithStringValue: @"Hello World!"];
[obj printValue];
NSString * str = obj.stringValue;
obj.stringValue = @"HeLLo wOrLd!!!";
Result
4. Call Objective-c class from Swift code
Objective-C class (ObjcClass.h)
#import <Foundation/Foundation.h...
How to dump a table to console?
...I usually end up using the one from Penlight:
> t = { a = { b = { c = "Hello world!", 1 }, 2, d = { 3 } } }
> require 'pl.pretty'.dump(t)
{
a = {
d = {
3
},
b = {
c = "Hello world!",
1
},
2
}
}
...
PowerMockito mock single static method and return object
...assWithStatics.class);
when(ClassWithStatics.getString()).thenReturn("Hello!");
System.out.println("String: " + ClassWithStatics.getString());
System.out.println("Int: " + ClassWithStatics.getInt());
}
}
The String-valued static method is stubbed to return "Hello!", while the int-v...
Adding a UILabel to a UIToolbar
...llowing code: UILabel* label = [[UILabel alloc] init]; label.text = @"Hello"; label.font = [UIFont systemFontOfSize:16]; [label sizeToFit]; self.barItem.customView = label;
– Brett Donald
Feb 23 '15 at 6:21
...
Difference between single and double square brackets in Bash
...e brackets. I'll illustrate why with the following example:
if [ $var == "hello" ]; then
if $var happens to be null / empty, then this is what the script sees:
if [ == "hello" ]; then
which will break your script. The solution is to either use double brackets, or always remember to put quotes ...
How to make a variadic macro (variable number of arguments)
...rgs);
printf("%s\n", str);
}
int main() {
PRINT("[%s %d, %d] Hello World", "March", 26, 2009);
return 0;
}
If the compiler does not understand variadic macros, you can also strip out PRINT with either of the following:
#define PRINT //
or
#define PRINT if(0)print
The first c...
What's better at freeing memory with PHP: unset() or $var = null
...t($a) also removes $a from the symbol table; for example:
$a = str_repeat('hello world ', 100);
unset($a);
var_dump($a);
Outputs:
Notice: Undefined variable: a in xxx
NULL
But when $a = null is used:
$a = str_repeat('hello world ', 100);
$a = null;
var_dump($a);
Outputs:
NULL
It seems that ...
What is the difference between gsub and sub methods for Ruby Strings
...The g stands for global, as in replace globally (all):
In irb:
>> "hello".sub('l', '*')
=> "he*lo"
>> "hello".gsub('l', '*')
=> "he**o"
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Initializing a static std::map in C++
...nt> MyMap;
const MyMap::value_type rawData[] = {
MyMap::value_type("hello", 42),
MyMap::value_type("world", 88),
};
const int numElems = sizeof rawData / sizeof rawData[0];
MyMap myMap(rawData, rawData + numElems);
Since I wrote this answer C++11 is out. You can now directly initialize S...
How to run an EXE file in PowerShell with parameters with spaces and quotes
...tring, that is, it typically echos it to the screen, for example:
PS> "Hello World"
Hello World
If you want PowerShell to interpret the string as a command name then use the call operator (&) like so:
PS> & 'C:\Program Files\IIS\Microsoft Web Deploy\msdeploy.exe'
After that you p...