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Draw in Canvas by finger, Android
...onCreate(savedInstanceState);
dv = new DrawingView(this);
setContentView(dv);
mPaint = new Paint();
mPaint.setAntiAlias(true);
mPaint.setDither(true);
mPaint.setColor(Color.GREEN);
mPaint.setStyle(Paint.Style.STROKE);
mPaint.setStrokeJo...
What is the difference between indexOf() and search()?
...you to match against more sophisticated patters, case-insensitive strings, etc., while indexOf (one description here) simply matches a literal string. However, indexOf also allows you to specify a beginning index.
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How do I create a message box with “Yes”, “No” choices and a DialogResult?
... to design a form for that. I thought I could use MessageBox, add buttons, etc. to accomplish this. It is simple, but since there is no DialogResult returned, how do I retrieve the result?
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Why do I need an IoC container as opposed to straightforward DI code? [closed]
...t you get going very quickly. With autofac, structure map, unity, ninject, etc you should be able to have the container working in about 5 mins. Yes they have advanced features but you don't need those to get off the ground.
– Glenn Block
Aug 18 '09 at 7:53
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What is the best way to use a HashMap in C++?
...mally expected to have constant complexity. That is, an insertion, lookup, etc., typically takes essentially a fixed amount of time, regardless of how many items are in the table. An std::map has complexity that's logarithmic on the number of items being stored -- which means the time to insert or r...
How do I clear the terminal screen in Haskell?
...s functions for clearing the screen, displaying colors, moving the cursor, etc. Using it to clear the screen is easy: (this is with GHCI) import System.Console.ANSIclearScreen
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How efficient is locking an unlocked mutex? What is the cost of a mutex?
...
This depends on what you actually call "mutex", OS mode and etc.
At minimum it's a cost of an interlocked memory operation. It's a relatively heavy operation (compared to other primitive assembler commands).
However, that can be very much higher. If what you call "mutex" a kernel ob...
Lock Escalation - What's happening here?
...fects locking behaviour during the DML statements (INSERT, UPDATE, DELETE, etc.), not during the DDL statements (ALTER). SCH-M lock is always a lock of the whole database object, table in this example.
This is likely where the confusion comes from.
SSMS adds the ALTER TABLE <TableName> SET (...
How to get the response of XMLHttpRequest?
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I'd suggest looking into fetch. It is the ES5 equivalent and uses Promises. It is much more readable and easily customizable.
const url = "https://stackoverflow.com";
fetch(url)
.then(
response => response.text() // .json(), etc...
How to set background color of HTML element using css properties in JavaScript
...ithout any dashes. So background-color becomes backgroundColor.
function setColor(element, color)
{
element.style.backgroundColor = color;
}
// where el is the concerned element
var el = document.getElementById('elementId');
setColor(el, 'green');
...