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How does “cat
...
This is called heredoc format to provide a string into stdin. See https://en.wikipedia.org/wiki/Here_document#Unix_shells for more details.
From man bash:
Here Documents
This type of redirection instructs the shell to read input from
the current source u...
Spring mvc @PathVariable
...questMapping(value = " /order/{orderId}", method=RequestMethod.GET)
public String getOrder(@PathVariable String orderId){
//fetch order
}
if you use url www.mydomain.com/order/123, then orderId variable will be populated by value 123 by spring
Also note that PathVariable differs from requestParam...
Using python's eval() vs. ast.literal_eval()?
...al() only considers a small subset of Python's syntax to be valid:
The string or node provided may only consist of the following Python literal structures: strings, numbers, tuples, lists, dicts, booleans, and None.
Passing __import__('os').system('rm -rf /a-path-you-really-care-about') into a...
How can I check if a value is a json object?
...y server side code returns a value which is a json object on success and a string 'false' on failure. Now how can I check whether the returned value is a json object?
...
How to validate GUID is a GUID
How to determine if a string contains a GUID vs just a string of numbers.
9 Answers
9
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TypeError: sequence item 0: expected string, int found
...
string.join connects elements inside list of strings, not ints.
Use this generator expression instead :
values = ','.join(str(v) for v in value_list)
...
How to post data to specific URL using WebClient in C#
...n and yea it was easier than I thought :)
so here is the solution:
string URI = "http://www.myurl.com/post.php";
string myParameters = "param1=value1&param2=value2&param3=value3";
using (WebClient wc = new WebClient())
{
wc.Headers[HttpRequestHeader.ContentType] = "application/x...
Unicode character in PHP string
...e syntax so you can use json_decode to work on an artifically created JSON string representation. I changed the wording though to have that clarified.
– Stefan Gehrig
May 19 '11 at 12:48
...
What is a good pattern for using a Global Mutex in C#?
...g System.Security.Principal; //SecurityIdentifier
static void Main(string[] args)
{
// get application GUID as defined in AssemblyInfo.cs
string appGuid =
((GuidAttribute)Assembly.GetExecutingAssembly().
GetCustomAttributes(typeof(GuidAttribute), false).
...
Check if Key Exists in NameValueCollection
...key is not found;
So you can just:
NameValueCollection collection = ...
string value = collection[key];
if (value == null) // key doesn't exist
2) if the specified key is found and its associated value is null.
collection[key] calls base.Get() then base.FindEntry() which internally uses ...