大约有 15,590 项符合查询结果(耗时:0.0352秒) [XML]
How do you use NSAttributedString?
... var last: T? {
if self.isEmpty {
NSLog("array crash error - please fix")
return self [0]
} else {
return self[self.endIndex - 1]
}
}
}
extension Array {
var first: T? {
if self.isEmpty {
NSLog("array crash er...
PDO MySQL: Use PDO::ATTR_EMULATE_PREPARES or not?
...it occurs on the MySQL server.
Without EMULATE_PREPARES you may get syntax errors at prepare-time rather than at execute-time; with EMULATE_PREPARES you will only get syntax errors at execution time because PDO doesn't have a query to give to MySQL until execution time. Note that this affects the co...
Get PHP class property by string
...>{$property}[$name], otherwise $this->$property[$name] will throw an error
– goyote
Dec 8 '12 at 4:05
@goyote: I...
How do I get the information from a meta tag with JavaScript?
...kid It does seem somewhat superfluous. The snippet will always throw a TypeError if the tag is not found by its "property". Including [content] in the selector extends that exception to the case where any matching tag lacks a content attribute. IMO it makes more sense in that case to get a null resu...
Android 'Unable to add window — token null is not for an application' exception
...opics/ui/dialogs.html#CustomDialog) for creating a custom dialog have this error. Context mContext = getApplicationContext(); Dialog dialog = new Dialog(mContext); Your fix leads to Dialog dialog = new Dialog(this); Which works! Thanks
– bnieland
Sep 21 '1...
Remove border from IFrame
...ing the document using Markup Validation Service frameBorder results in an error as it's not HTML5 compliant: The frameborder attribute on the iframe element is obsolete. Use CSS instead. In HTML5 I would set a CSS property of border:0. Is there a way to make it backward compatible without causing...
Write to file, but overwrite it if it exists
... bash version 4.3.48(1)-release. echo "aaa" &>| test.txt results in error -bash: syntax error near unexpected token |. My noclobber is set On.
– Tu Bui
May 17 '19 at 17:46
1...
How to detect reliably Mac OS X, iOS, Linux, Windows in C preprocessor? [duplicate]
... #elif TARGET_OS_MAC
// Other kinds of Mac OS
#else
# error "Unknown Apple platform"
#endif
#elif __linux__
// linux
#elif __unix__ // all unices not caught above
// Unix
#elif defined(_POSIX_VERSION)
// POSIX
#else
# error "Unknown compiler"
#endif
The defin...
Validate that a string is a positive integer
...(expect === undefined ? "" : !!expect === !!result ? " <= OK" : " <= ERROR ***")
);
}
gid("btn").addEventListener(
"click",
function() {
test(gid("text").value);
},
false
);
test("1", true);
test("1.23", false);
test("1234567890123", true);
test("123456...
npm can't find package.json
...s express 2.5.8 that I've downloaded, but all of the apps throw the same error:
25 Answers
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