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HashSet versus Dictionary w.r.t searching time to find if an item exists
...DN documentation for Dictionary<TKey,TValue>
"Retrieving a value by using its key is very fast, close to O(1), because the Dictionary class is implemented as a hash table."
With a note:
"The speed of retrieval depends on the quality of the hashing algorithm of the type specified for...
AngularJs $http.post() does not send data
... choice being unable to understand AngularJS’s transmission natively ... By default, jQuery transmits data using
Content-Type: x-www-form-urlencoded
and the familiar foo=bar&baz=moe serialization.
AngularJS, however, transmits data using
Content-Type: application/json
and...
In absence of preprocessor macros, is there a way to define practical scheme specific flags at proje
... project level. The simplest example is the DEBUG=1 macro that is defined by default for all Xcode projects in the default scheme for the Run build. One could query #ifdef DEBUG ... and make decisions in the code accordingly, even compiling out non-necessary code.
...
How to copy text from Emacs to another application on Linux
...ation window).
An X paste is pressing the "center mouse button" (simulated by pressing the left and right mouse buttons together).
In my case (on GNOME):
Both Emacs and system copy usually work with X paste.
X copy usually works with Emacs paste.
To make system copy work with Emacs paste and Ema...
Javascript switch vs. if…else if…else
...map[funCode];
if (thisFun) thisFun();
}
Setting up multi-way branching by creating an object has a lot of advantages. You can add and remove functionality dynamically. You can create the dispatch table from data. You can examine it programmatically. You can build the handlers with other function...
Java: How to get input from System.console()
... method delegates to an overloaded read() method that reads 8192 amount of bytes and buffers them until they are needed. It still returns only the single byte (but keeps the others in reserve). This way the BufferedInputStream makes less native calls to the OS to read from the file. Thanks
...
What is the difference between screenX/Y, clientX/Y and pageX/Y?
... to the top left corner of the whole rendered page (including parts hidden by scrolling),
while clientX/Y coordinates are relative to the top left corner of the visible part of the page, "seen" through browser window.
See Demo
You'll probably never need screenX/Y
...
How to change time and timezone in iPhone simulator?
...sible to override time on the status bar of iOS simulator (since Xcode 11) by using simctl tool:
xcrun simctl status_bar "iPhone Xs" override --time "21:08"
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When should i use npm with “-g” flag and why?
... imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454...
npm install from Git in a specific version
...
A dependency has to be available from the registry to be installed just by specifying a version descriptor.
You can certainly create and use your own registry instead of registry.npmjs.org if your projects shouldn't be shared publicly.
But, if it's not in a registry, it'll have to be referenced...