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Removing fields from struct or hiding them in JSON Response
...ing would want, but it's not the answer to the question.
I'd use a map[string]interface{} instead of a struct in this case. You can easily remove fields by calling the delete built-in on the map for the fields to remove.
That is, if you can't query only for the requested fields in the first pla...
Where is array's length property defined?
...ytecode instruction: arraylength. So this method:
public static void main(String[] args) {
int x = args.length;
}
is compiled into bytecode like this:
public static void main(java.lang.String[]);
Code:
0: aload_0
1: arraylength
2: istore_1
3: return
So it's not access...
How should I read a file line-by-line in Python?
...ndle when it collects the file object, therefore as long as you don't have extra references to the file object and you don't disable GC and you're not opening many files in quick succession, you're unlikely to get "too many files open" due to not closing the file.
– Lie Ryan
...
Debug vs Release in CMake
...
Instead of manipulating the CMAKE_CXX_FLAGS strings directly (which could be done more nicely using string(APPEND CMAKE_CXX_FLAGS_DEBUG " -g3") btw), you can use add_compiler_options:
add_compile_options(
"-Wall" "-Wpedantic" "-Wextra" "-fexceptions"
"$<$<CO...
Why do you need to invoke an anonymous function on the same line?
...ess function and groups it, but does not call it. The second line groups a string. Both do nothing. (Vincent's first example.)
(function (msg){alert(msg)});
('SO'); // nothing.
(foo);
(msg); //Still nothing.
But
(foo)
(msg); //works
...
Stack smashing detected
...s protection variables (called canaries) which have known values. An input string of size greater than 10 causes corruption of this variable resulting in SIGABRT to terminate the program.
To get some insight, you can try disabling this protection of gcc using option -fno-stack-protector while co...
Multiple file upload in php
...sure to look for empty file names and paths, the array might contain empty strings. Use array_filter() before count.
Here is a down and dirty example (showing just relevant code)
HTML:
<input name="upload[]" type="file" multiple="multiple" />
PHP:
//$files = array_filter($_FILES['upload...
Why is argc not a constant?
...ough getopt's prototype suggests it won't modify argv[] but may modify the strings pointed to, the Linux man page indicates that getopt permutes its arguments, and it appears they know they're being naughty. The man page at the Open Group does not mention this permutation.)
Putting const on argc a...
How to test that no exception is thrown?
...mple code:
public class Printer {
public static void printLine(final String line) {
System.out.println(line);
}
}
What kind of assertion can be added to test this method?
Sure, you can make a try-catch around it, but that is only code bloat.
The solution comes from JUnit itself....
What does send() do in Ruby?
...eed to read attributes on an object.
For example, if you have an array of strings, if you try to iterate through them and call them on your object, it won't work.
atts = ['name', 'description']
@project = Project.first
atts.each do |a|
puts @project.a
end
# => NoMethodError: undefined method ...