大约有 13,916 项符合查询结果（耗时：0.0259秒） [XML]
php is null or empty?
...)
empty is_null
==null ===null isset array_key_exists
ϕ | T | T | F | F
null | T | T | F | T
"" | T | F | T | T
[] | T | F | T | T
0 | T | F | T | T
false | T...
Best cross-browser method to capture CTRL+S with JQuery?
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on OS X webkit browsers cmd+s returns 19, so it is also worth checking for that. i.e. if (!(event.which == 115 && event.ctrlKey) && !(event.which == 19)) return true;
– Tadas T
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How can I fix WebStorm warning “Unresolved function or method” for “require” (Firefox Add-on SDK)
I'm using WebStorm 7 for Firefox Add-on SDK development.
13 Answers
13
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Calling a function every 60 seconds
...over and over.
A better approach is, to use setTimeout along with a self-executing anonymous function:
(function(){
// do some stuff
setTimeout(arguments.callee, 60000);
})();
that guarantees, that the next call is not made before your code was executed. I used arguments.callee in this e...
Undefined symbols for architecture i386: _OBJC_CLASS_$_SKPSMTPMessage", referenced from: error
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Deleting an object in java?
...ally deleted by the garbage collector (not immediately, but eventually).
Example 1:
Object a = new Object();
a = null; // after this, if there is no reference to the object,
// it will be deleted by the garbage collector
Example 2:
if (something) {
Object o = new Object();
} // a...
Bootstrap: How do I identify the Bootstrap version?
...d answer), but for anyone reading after this date - note that bootstrap v3.x is not backwards compatible with v2.x getbootstrap.com/migration
– mulllhausen
Nov 19 '17 at 10:53
1
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What is Type-safe?
... an error if you try to assign the wrong type to a variable.
Some simple examples:
// Fails, Trying to put an integer in a string
String one = 1;
// Also fails.
int foo = "bar";
This also applies to method arguments, since you are passing explicit types to them:
int AddTwoNumbers(int a, int b)
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Replace new lines with a comma delimiter with Notepad++?
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Open the find and replace dialog (press CTRL+H).
Then select Regular expression in the 'Search Mode' section at the bottom.
In the Find what field enter this: [\r\n]+
In the Replace with: ,
There is a space after the comma.
This will also replace lines like
Apples
Apricots
Pear
Avoca...
Java Look and Feel (L&F) [closed]
...stantial project)
Napkin LaF
Synthetica
Quaqua (looks like aqua from MacOS X)
Seaglass
JGoodies
Liquidlnf
The Alloy Look and Feel
PgsLookAndFeel
JTatoo
Jide look and feel
etc.
Resources :
Best Java Swing Look and Feel Themes | Top 10 (A lot of the preview images on this page are now missing)
orac...