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How to manually set an authenticated user in Spring Security / SpringMVC
...ssword, HttpServletRequest request) {
try {
// Must be called from request filtered by Spring Security, otherwise SecurityContextHolder is not updated
UsernamePasswordAuthenticationToken token = new UsernamePasswordAuthenticationToken(username, password);
token.setDetail...
Ruby: Calling class method from instance
In Ruby, how do you call a class method from one of that class's instances? Say I have
9 Answers
...
Error: Configuration with name 'default' not found in Android Studio
... just need to run terminal command: ./gradlew assembleDebug. You can do it from Android Studio or an external terminal app.
– eleven
Apr 15 '15 at 12:40
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Find object by id in an array of JavaScript objects
...
Use the find() method:
myArray.find(x => x.id === '45').foo;
From MDN:
The find() method returns the first value in the array, if an element in the array satisfies the provided testing function. Otherwise undefined is returned.
If you want to find its index instead, use findInd...
How are virtual functions and vtable implemented?
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How are virtual functions implemented at a deep level?
From "Virtual Functions in C++":
Whenever a program has a virtual function declared, a v - table is constructed for the class. The v-table consists of addresses to the virtual functions for classes that contain one or mor...
jQuery.click() vs onClick
...
}, false);
http://jsfiddle.net/aj55x/1/
Why use addEventListener? (From MDN)
addEventListener is the way to register an event listener as specified
in W3C DOM. Its benefits are as follows:
It allows adding more than a single handler for an event. This is particularly useful fo...
Writing outputs to log file and console
...ich redirects all the outputs ( echo messages ) and errors to the log file from the executed script using the following code:
...
Rename a git submodule
...tree but also updating the "submodule.<submodule name>.path" setting from the .gitmodules file and stage both.
This doesn't happen when no .gitmodules file is found and only issues a warning when it doesn't have a section for this submodule. This is because the user might just use plain gitl...
How does JavaScript .prototype work?
...slot as a property on an object, internal to the JavaScript engine, hidden from the code you write. The square brackets around [[Prototype]] are deliberate, and are an ECMAScript specification convention to denote internal slots.
The value pointed at by the [[Prototype]] of an object, is colloquia...
What is the preferred syntax for defining enums in JavaScript?
...t.freeze(DaysEnum)
and voila! JS enums.
However, this doesn't prevent you from assigning an undesired value to a variable, which is often the main goal of enums:
let day = DaysEnum.tuesday
day = 298832342 // goes through without any errors
One way to ensure a stronger degree of type safety (with e...