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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);
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How to check if a string contains text from an array of substrings in JavaScript?
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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
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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
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Change the color of a bullet in a html list?
... }
</style>
</head>
<body>
<ul>
<li>foo</li>
<li>bar</li>
</ul>
</body>
</html>
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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
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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
});
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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.
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How to really read text file from classpath in Java
...ource abstraction.
Resource resource = new ClassPathResource("com/example/Foo.class");
Through the Resource interface you can access the resource as InputStream, URL, URI or File. Changing the resource type to e.g. a file system resource is a simple matter of changing the instance.
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