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What is NSZombie?
...nabled then whenever an object reaches retain count 0, rather than being deallocated it morphs itself into an NSZombie instance. Whenever such a zombie receives a message, it logs a warning rather than crashing or behaving in an unpredictable way. As such, you can debug subtle over-release/autorelea...
What does MVW stand for?
...as the point is to understand the concepts from the terms, but by the same token, fully understanding the terms helps one when they are designing their application code, knowing what goes where and why.
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Running Command Line in Java [duplicate]
...tter than Runtime.getRuntime().exec(). This is for a couple of reasons: it tokenizes better the arguments, and it also takes care of the error standard output (check also here).
ProcessBuilder builder = new ProcessBuilder("cmd", "arg1", ...);
builder.redirectErrorStream(true);
final Process process...
Safely turning a JSON string into an object
...ill see an error thrown in the console with the dreaded "Error: unexpected token 'x'".
var data;
try {
data = JSON.parse(jqxhr.responseText);
} catch (_error) {}
data || (data = {
message: 'Server error, please retry'
});
...
Android Center text on canvas
...Bounds(Rect) instead. (Do not use Canvas.getClipBounds().getHeight() as it allocates memory for a Rect.)
For reasons of performance, you should allocate objects before they are used in onDraw(). As drawCenter() will be called within onDraw() the object Rect r is preallocated as a field here.
I ...
How to write a JSON file in C#?
...ly into memory, but I was able to find a couple of key places where object allocations could be reduced...... (now) Json.Net (6.0) allocates 8 times less memory than JavaScriptSerializer
Update since .Net Core 3.0
A new kid on the block since writing this is System.Text.Json which has been a...
How do I calculate tables size in Oracle
...
You might be interested in this query. It tells you how much space is allocated for each table taking into account the indexes and any LOBs on the table. Often you are interested to know "How much spaces the the Purchase Order table take, including any indexes" rather than just the table itsel...
How to extract the substring between two markers?
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If any of the tokens can't be found in the s, s.find will return -1. the slicing operator s[begin:end] will accept it as valid index, and return undesired substring.
– ribamar
Aug 28 '17 at 15:44
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Generating random number between 1 and 10 in Bash Shell Script [duplicate]
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I get a syntax error: syntax error near unexpected token `+' on Linux
– Spaceghost
Aug 19 '13 at 17:57
40
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Omitting the second expression when using the if-else shorthand
...nts without any value.
This will produce Uncaught SyntaxError: Unexpected token continue
for (const item of myArray) {
item.value ? break : continue;
}
If you really want a one-liner that returns a statement, you can use this instead:
for (const item of myArray) {
if (item.value...