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list every font a user's browser can display
... {
var nFontLen = dlgHelper.fonts.count;
var rgFonts = new Array();
for ( var i = 1; i < nFontLen + 1; i++ )
rgFonts[i] = dlgHelper.fonts(i);
rgFonts.sort();
for ( var j = 0; j < nFontLen; j++ )
document.write( rgFonts[j] + "<...
Reading 64bit Registry from a 32bit application
... test?.Dump(); // output:
// "elvis" operator for arrays
test?[0].Dump(); // output:
(test?[0]).Dump(); // output: null
// combined with null coalescing operator (brackets required):
(test?[0]??"<null>").Dump(); // output...
Best ways to teach a beginner to program? [closed]
...ike an app which calls the users a random insult at some interval. (Loops, arrays, timers, and random if you make the interval random)
2) Simple Project Once they have a good grasp of language features, you can start a project(simple, fun games work good.). You should try to have the first project...
String concatenation: concat() vs “+” operator
...ble in src.zip of the Sun JDK. You can see that you are building up a char array (resizing as necessary) and then throwing it away when you create the final String. In practice memory allocation is surprisingly fast.
Update: As Pawel Adamski notes, performance has changed in more recent HotSpot. ja...
What's the difference between findAndModify and update in MongoDB?
...ifies only one doc and update() can updates one or more doc, when I use an arrayFilters, findAndModify() updates all matches. Maybe it is a bug??
– WesternGun
Feb 16 '18 at 14:18
...
Using {} in a case statement. Why?
... a trivial destructor, a cv-qualified version of one of these types, or an array of one of the preceding types and is declared without an initializer (8.5).
and provides this example:
void f() {
// ...
goto lx; // ill-formed: jump into scope of a
ly:
X a = 1;
// ...
lx:
goto ly; // OK, ...
What does the function then() mean in JavaScript?
...d is not
correct, or there is no data available on the server (think empty array). In such a
case, for the next promise P2, it should trigger the error handler E2.
• We receive an error for promise P2, triggering E2. But inside the handler, we have
data from the cache, ensuring that the applicati...
What is the difference between the HashMap and Map objects in Java?
...
It is similar to how often a List is implemented as an ArrayList
– Gerard
Jul 29 '15 at 14:51
...
How to make the 'cut' command treat same sequental delimiters as one?
...ted to awk:
perl -lane 'print $F[3]' text.txt
However, the @F autosplit array starts at index $F[0] while awk fields start with $1
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Getting image dimensions without reading the entire file
... a new file format you add it to imageFormatDecoders with the key being an array of the "magic bits" which appear at the beginning of every file of the given format and the value being a function which extracts the size from the stream. Most formats are simple enough, the only real stinker is jpeg.
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