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grep a tab in UNIX
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Doesn't work if the String contains anything other than '\t'. How would you search for "\t " (tab + space) for example?
– Raman
Apr 17 '13 at 15:05
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Converting DateTime format using razor
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Try:
@item.Date.ToString("dd MMM yyyy")
or you could use the [DisplayFormat] attribute on your view model:
[DisplayFormat(DataFormatString = "{0:dd MMM yyyy}")]
public DateTime Date { get; set }
and in your view simply:
@Html.DisplayFor(...
Redirect to an external URL from controller action in Spring MVC
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Its even simpler if you directly return a String rather then the ModelAndView.
– daniel.eichten
Sep 5 '15 at 8:57
24
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delete map[key] in go?
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Strangely enough,
package main
func main () {
var sessions = map[string] chan int{};
delete(sessions, "moo");
}
seems to work. This seems a poor use of resources though!
Another way is to check for existence and use the value itself:
package main
func main () {
var sessions = ...
Shallow copy of a Map in Java
...ap here, but it works for every implementation of the Map interface
Map<String, Object> data = new HashMap<String, Object>();
Map<String, Object> shallowCopy = new HashMap<String, Object>();
shallowCopy.putAll(data);
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Should I use window.navigate or document.location in JavaScript?
... thing. See docs.sun.com/source/816-6408-10/location.htm: "If you assign a string to the location property of an object, JavaScript creates a location object and assigns that string to its href property."
– James Skidmore
Dec 9 '10 at 18:36
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How to open a file for both reading and writing?
...ontent after the specified number of bytes. Imagine that your file has the string Hello, world and you write Bye. If you don't truncate() the content at the end will be Byelo, world, since you never deleted the text that existed in the file. truncate() truncates the file to the current fp.
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What is the difference between `raise “foo”` and `raise Exception.new(“foo”)`?
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From the offical documentation:
raise
raise( string )
raise( exception [, string [, array ] ] )
With no arguments, raises the exception in $! or raises a RuntimeError if $! is nil. With a single String argument, it raises a RuntimeError with the string as a message. O...
Local Storage vs Cookies
...a
Expiration dates
Cons
Each domain stores all its cookies in a single string, which can make
parsing data difficult
Data is unencrypted, which becomes an issue because... ... though
small in size, cookies are sent with every HTTP request Limited size
(4KB)
SQL injection can be performed from a ...
Adding a directory to $LOAD_PATH (Ruby)
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Also, it's a lot harder to Google for strings like "$:" that contain only symbols.
– DSimon
Apr 19 '12 at 3:39
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