大约有 12,000 项符合查询结果（耗时：0.0190秒） [XML]
Is it possible to use the instanceof operator in a switch statement?
...Map<Class,Runnable> doByClass = new HashMap<>();
doByClass.put(Foo.class, () -> doAClosure(this));
doByClass.put(Bar.class, this::doBMethod);
doByClass.put(Baz.class, new MyCRunnable());
// of course, refactor this to only initialize once
doByClass.get(getClass()).run();
If you n...
How do I ALTER a PostgreSQL table and make a column unique?
...Or, have the DB automatically assign a constraint name using:
ALTER TABLE foo ADD UNIQUE (thecolumn);
share
|
improve this answer
|
follow
|
...
How to check if a string contains text from an array of substrings in JavaScript?
...
var yourstring = 'tasty food'; // the string to check against
var substrings = ['foo','bar'],
length = substrings.length;
while(length--) {
if (yourstring.indexOf(substrings[length])!=-1) {
// one of the substrings is in yourstring
...
Captured variable in a loop in C#
...:
for (int i=0; i < 10; i++) // Just one variable
foreach (string x in foo) // And again, despite how it reads out loud
See section 7.14.4.2 of the C# 3.0 spec for more details of this, and my article on closures has more examples too.
Note that as of the C# 5 compiler and beyond (even when s...
Spring MVC: Complex object as GET @RequestParam
... the table. The filter is sent as an Ajax GET to an URL like that: http://foo.com/system/controller/action?page=1&prop1=x&prop2=y&prop3=z
...
Change the color of a bullet in a html list?
... }
</style>
</head>
<body>
<ul>
<li>foo</li>
<li>bar</li>
</ul>
</body>
</html>
share
|
improve this answer
...
Is there a way to get the git root directory in one command?
...solution - it'll follow up any symbolic links. So, if you are in ~/my.proj/foo/bar, and ~/my.proj is symlinked to ~/src/my.proj, the above command will move you to ~/src/my.proj. Could be a problem, if whatever you want to do after that is not tree agnostic.
– Franci Penov
...
How do I read the contents of a Node.js stream into a string variable?
...''));
});
}
Usage example:
let stream = fs.createReadStream('./myFile.foo');
streamToString(stream, (data) => {
console.log(data); // data is now my string variable
});
share
|
improve t...
How to identify if a webpage is being loaded inside an iframe or directly into the browser window?
...l.
Imagine this page layout:
MainPage.html
IframedPage1.html (named "foo")
IframedPage2.html (named "bar")
IframedPage3.html (named "baz")
Now in frame "baz" you click a link (no target, loads in the "baz" frame) it works fine.
If the page that gets loaded, lets call it special.html...
Why are data transfer objects (DTOs) an anti-pattern?
...nonymous types to JSON just fine. Try it in an MVC app: return Json(new { Foo = "Hi there! } ); I promise you it works just fine. Better, perhaps, than non-anonymous types, since anonymous types generally have no cycles in their object graphs, which break the JSON serializer.
...