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Django's SuspiciousOperation Invalid HTTP_HOST header
...
What's the extra in this configuration? I have the server name set both in the redirects and the app section, I still get Invalid HTTP_HOST header (with Django 1.8.x)
– Csaba Toth
Jan 2 '18 at 18:3...
How do I tokenize a string in C++?
...e convenient. But what would its return type be? std::vector<std::basic_string<…>>? Maybe, but then we’re forced to perform (potentially redundant and costly) allocations.
Instead, C++ offers a plethora of ways to split strings based on arbitrarily complex delimiters, but none of th...
Lambda capture as const reference?
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In c++14 using static_cast / const_cast:
[&best_string = static_cast<const std::string&>(best_string)](const string& s)
{
best_string = s; // fails
};
DEMO
In c++17 using std::as_const:
[&best_string = std::as_const(best_string)](const string&am...
Named capturing groups in JavaScript regex?
...y valuable. For example, if you want to use a regex to parse a date from a string, you could write a flexible function that takes the value and the regex. As long as the regex has named captures for the year, month and date you could run through an array of regular expressions with minimal code.
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What does int argc, char *argv[] mean?
...e arguments are passed to main() in C and C++.
argc will be the number of strings pointed to by argv. This will (in practice) be 1 plus the number of arguments, as virtually all implementations will prepend the name of the program to the array.
The variables are named argc (argument count) and ar...
How to convert a string to an integer in JavaScript?
How do I convert a string to an integer in JavaScript?
27 Answers
27
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How to call shell commands from Ruby
...ems.
Here are ways to execute a shell script:
cmd = "echo 'hi'" # Sample string that can be used
Kernel#` , commonly called backticks – `cmd`
This is like many other languages, including Bash, PHP, and Perl.
Returns the result (i.e. standard output) of the shell command.
Docs: http://ruby-...
Is there a simple way to remove multiple spaces in a string?
Suppose this string:
29 Answers
29
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Multiple HttpPost method in Web API controller
...t to set any restriction on the type of the ID? Meaning: how can I accepts string IDs as well?
– frapontillo
Sep 12 '13 at 7:54
5
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Does Java support default parameter values?
...ys to simulate default parameters in Java:
Method overloading.
void foo(String a, Integer b) {
//...
}
void foo(String a) {
foo(a, 0); // here, 0 is a default value for b
}
foo("a", 2);
foo("a");
One of the limitations of this approach is that it doesn't work if you have two optional ...