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How can I extend typed Arrays in Swift?
...ement is a placeholder for the contained type. For example: var myArray = [Foo]() means that myArray will only contain type Foo. Foo in this case is "mapped" to the generic placeholder Element. If you want to change the general behavior of Array (via extension) you would use the generic placeholder ...
PHP method chaining?
...the host object, while a Fluent Interface is aimed at creating a DSL. Ex: $foo->setBar(1)->setBaz(2) vs $table->select()->from('foo')->where('bar = 1')->order('ASC). The latter spans multiple objects.
– Gordon
Sep 16 '10 at 7:32
...
Is it not possible to stringify an Error using JSON.stringify?
... writable: true
});
var error = new Error('testing');
error.detail = 'foo bar';
console.log(JSON.stringify(error));
// {"message":"testing","detail":"foo bar"}
Using Object.defineProperty() adds toJSON without it being an enumerable property itself.
Regarding modifying Error.prototype, wh...
Executing JavaScript without a browser?
...iles with the #!/usr/bin/js shebang line and things will just work:
$ cat foo.js
#!/usr/bin/js
console.log("Hello, world!");
$ ls -lAF /usr/bin/js /etc/alternatives/js /usr/bin/nodejs
lrwxrwxrwx 1 root root 15 Jul 16 04:26 /etc/alternatives/js -> /usr/bin/nodejs*
lrwxrwxrwx 1 root root ...
Get type of all variables
...f(1L) #a single numeric with L postfixed: integer
typeof("foobar") #A single string in double quotes: character
typeof(1) #a single numeric: double
typeof(list(5,6,7)) #a list of numeric: list
typeof(2i) ...
Pandas - How to flatten a hierarchical index in columns
...(pd.__version__) # '0.23.4'
index = pd.MultiIndex.from_product(
[['foo', 'bar'], ['baz', 'qux']],
names=['a', 'b'])
print(index)
# MultiIndex(levels=[['bar', 'foo'], ['baz', 'qux']],
# codes=[[1, 1, 0, 0], [0, 1, 0, 1]],
# names=['a', 'b'])
Applying to_flat_ind...
Simplest way to serve static data from outside the application server in a Java web application
...t: We have been created 2 alias. For example, we save images at: D:\images\foo.jpg
and view from link or using image tag:
<img src="http://localhost:8080/ABC/images/foo.jsp" alt="Foo" height="142" width="142">
or
<img src="/images/foo.jsp" alt="Foo" height="142" width="142">
(I u...
Form inside a form, is that alright? [duplicate]
...gt;</form>
<div id="toolbar">
<input type="text" name="foo" form="saveForm" />
<input type="hidden" value="some_id" form="deleteForm" />
<input type="text" name="foo2" id="foo2" form="saveForm" value="success" />
<input type="submit" name="save" val...
Default value for field in Django model
...can set the default like this:
b = models.CharField(max_length=7,default="foobar")
and then you can hide the field with your model's Admin class like this:
class SomeModelAdmin(admin.ModelAdmin):
exclude = ("b")
sha...
Use of alloc init instead of new
...be using a different method, such as [[SomeObject alloc] initWithString: @"Foo"]. If you're used to writing this, you get in the habit of doing it this way and so [[SomeObject alloc] init] may come more naturally that [SomeObject new].
...