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Nested attributes unpermitted parameters
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If you use a JSONB field, you must convert it to JSON with .to_json (ROR)
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How to instantiate non static inner class within a static method?
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A "regular" inner class has a hidden (implicit) pointer to a Outer class instance. This allows the compiler to generate the code to chase the pointer for you without you having to type it. For instance, if there is a variable "a" in the outer class then the code in your inne...
Why is @autoreleasepool still needed with ARC?
...ample of using an auto release pool:
- (void)useALoadOfNumbers {
for (int j = 0; j < 10000; ++j) {
@autoreleasepool {
for (int i = 0; i < 10000; ++i) {
NSNumber *number = [NSNumber numberWithInt:(i+j)];
NSLog(@"number = %p", number);
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Has anyone used Coffeescript for a production application? [closed]
...concern. It's entirely likely, from the text I've given, that we've simply converted already working javascript into coffeescript, hence no serious debugging is yet required
– PandaWood
Jan 30 '12 at 0:58
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Update git commit author date when amending
... in the source code of git(1) in date.c 'now' is a special value which is converted using date_now() function. Same for 'noon', 'yesterday', 'midnight', 'tea' and others listed in the structure array special[].
– sbz
Jul 29 '16 at 0:18
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Command line: piping find results to rm
...d -type f -name '*.sql' -mtime +15 | xargs rm
xargs is the command that "converts" its standard input into arguments of another program, or, as they more accurately put it on the man page,
build and execute command lines from standard input
Note that if file names can contain whitespace char...
Using a custom typeface in Android
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@CommonsWare: I don't necessarily agree. Typeface is a integral part of UI Styling like you do with backgrounds images etc. And size is not necessarily big always. For instance, the font in my case is just 19.6KB :)
– Codevalley
Jun 6 '10 at...
Resolve absolute path from relative path and/or file name
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I came across a similar need this morning: how to convert a relative path into an absolute path inside a Windows command script.
The following did the trick:
@echo off
set REL_PATH=..\..\
set ABS_PATH=
rem // Save current directory and change to target directory
pushd %R...
Test for existence of nested JavaScript object key
... arguments is not actually an array. Array.prototype.slice.call(arguments) converts it to a formal array. Learn
– deefour
Nov 10 '12 at 1:00
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Example invalid utf8 string?
...amples generated from U+24B62. I used them for a bug report: Bug #65045 mb_convert_encoding breaks well-formed character
// U+24B62: "\xF0\xA4\xAD\xA2"
"\xF0\xA4\xAD" ."\xF0\xA4\xAD\xA2"."\xF0\xA4\xAD\xA2"
"\xF0\xA4\xAD\xA2"."\xF0\xA4\xAD\xA2"."\xF0\xA4\xAD"
The oversimplification of range of ...