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Split string in Lua?
...
Here is my really simple solution. Use the gmatch function to capture strings which contain at least one character of anything other than the desired separator. The separator is **any* whitespace (%s in Lua) by default:
function mysplit ...
From io.Reader to string in Go
...byte to a string, you could change the contents of the string. However, go allows you to disable the type safety mechanisms using the unsafe package. Use the unsafe package at your own risk. Hopefully the name alone is a good enough warning. Here is how I would do it using unsafe:
buf := new(bytes....
Razor ViewEngine: How do I escape the “@” symbol?
... Twitter handles in ASP.NET MVC3 in conjunction with the Twitter @Anywhere API, and I haven't been able to figure out how to actually escape the "@" symbol in a Razor view.
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How to check whether a file or directory exists?
...iven file or directory exists
func exists(path string) (bool, error) {
_, err := os.Stat(path)
if err == nil { return true, nil }
if os.IsNotExist(err) { return false, nil }
return false, err
}
Edited to add error handling.
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Set the value of an input field
...accessed directly using dot notation: developer.mozilla.org/en-US/docs/Web/API/Element.setAttribute you only use set/getAttribute to deal with the original value. After DOM is loaded, .value represents the actual working value of the element.
– Chris Baker
Sep ...
What is a “callback” in C and how are they implemented?
...y're implemented using function pointers. Here's an example:
void populate_array(int *array, size_t arraySize, int (*getNextValue)(void))
{
for (size_t i=0; i<arraySize; i++)
array[i] = getNextValue();
}
int getNextRandomValue(void)
{
return rand();
}
int main(void)
{
int m...
How to change time and timezone in iPhone simulator?
...he purpose of a screenshot). But it won't affect the result of a time/date API.
– Roun
Nov 6 '19 at 17:25
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How do I create a MongoDB dump of my database?
...ump:
$ ./mongodump --host prod.example.com
connected to: prod.example.com
all dbs
DATABASE: log to dump/log
log.errors to dump/log/errors.bson
713 objects
log.analytics to dump/log/analytics.bson
234810 objects
DATABASE: blog to dump/blog
...
Foreign key constraints: When to use ON UPDATE and ON DELETE
...tent database, and that's one of the good reasons to use a database. Especially if you have several applications requesting it (or just one application but with a direct mode and a batch mode using different sources).
With MySQL you do not have advanced constraints like you would have in postgreSQL...
How can I send mail from an iPhone application
...my iPhone application. I have heard that the iOS SDK doesn't have an email API. I don't want to use the following code because it will exit my application:
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