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Accessing nested JavaScript objects and arays by string path
...this based on some similar code I already had, it appears to work:
Object.byString = function(o, s) {
s = s.replace(/\[(\w+)\]/g, '.$1'); // convert indexes to properties
s = s.replace(/^\./, ''); // strip a leading dot
var a = s.split('.');
for (var i = 0, n = a.length; i...
What's the difference between compiled and interpreted language?
...s translated into native machine instructions, which are executed directly by the hardware.
In an interpreted implementation, the original program is translated into something else. Another program, called "the interpreter", then examines "something else" and performs whatever actions are called fo...
What's the difference between faking, mocking, and stubbing?
...ld a very lightweight implementation of the same functionality as provided by a component that the SUT depends on and instruct the SUT to use it instead of the real.
Stub : This implementation is configured to respond to calls from the SUT with the values (or exceptions) that will exercise the Untes...
Which $_SERVER variables are safe?
... values into three categories:
Server controlled
These variables are set by the server environment and depend entirely on the server configuration.
'GATEWAY_INTERFACE'
'SERVER_ADDR'
'SERVER_SOFTWARE'
'DOCUMENT_ROOT'
'SERVER_ADMIN'
'SERVER_SIGNATURE'
Partly server controlled
These variables de...
How do you determine which backend is being used by matplotlib?
...or from within a script, how can you determine which backend is being used by matplotlib?
2 Answers
...
Explain how finding cycle start node in cycle linked list work?
...beginning of linked list while keeping the hare at meeting place, followed by moving both one step at a time make them meet at starting point of cycle?
...
What are copy elision and return value optimization?
... occurs - skip to this answer.
Copy elision is an optimization implemented by most compilers to prevent extra (potentially expensive) copies in certain situations. It makes returning by value or pass-by-value feasible in practice (restrictions apply).
It's the only form of optimization that elides (...
Error :Request header field Content-Type is not allowed by Access-Control-Allow-Headers
...
As hinted at by this post Error in chrome: Content-Type is not allowed by Access-Control-Allow-Headers just add the additional header to your web.config like so...
<httpProtocol>
<customHeaders>
<add name="Access-...
Select the values of one property on all objects of an array in PowerShell
...eInfo objects. You can always inspect the type coming through the pipeline by piping to Get-Member (alias gm).
ls | select -Property Name | gm
So, to expand the object to be that of the type of property you're looking at, you can do the following:
ls | select -ExpandProperty Name
In your case,...
Difference between return and exit in Bash functions
...;
Causes a function to stop executing and return the value specified by n to its caller. If n is omitted, the return status is that of the last command executed in the function body.
... on exit [n]:
Cause the shell to exit with a status of n. If n is omitted, the exit status is ...