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Pass Variables by Reference in Javascript
... it means that it's possible to pass a simple variable in such a way as to allow a function to modify that value in the calling context. So:
function swap(a, b) {
var tmp = a;
a = b;
b = tmp; //assign tmp to b
}
var x = 1, y = 2;
swap(x, y);
alert("x is " + x + ", y is " + y); // "...
Saving utf-8 texts in json.dumps as UTF8, not as \u escape sequence
...ure_ascii=False switch to json.dumps(), then encode the value to UTF-8 manually:
>>> json_string = json.dumps("ברי צקלה", ensure_ascii=False).encode('utf8')
>>> json_string
b'"\xd7\x91\xd7\xa8\xd7\x99 \xd7\xa6\xd7\xa7\xd7\x9c\xd7\x94"'
>>> print(json_string.decode(...
StringIO in Python3
... of the question and is included only as something to consider when generically addressing the missing StringIO module. For a more direct solution the message TypeError: Can't convert 'bytes' object to str implicitly, see this answer.
...
Why no generics in Go?
... id types. Type information is preserved and can be "cast" (asserted, actually) back to its concrete type. Get the gritty details here: golang.org/ref/spec#Type_assertions
– tbone
Aug 25 '13 at 20:50
...
Numeric for loop in Django templates
...
I've used a simple technique that works nicely for small cases with no special tags and no additional context. Sometimes this comes in handy
{% for i in '0123456789'|make_list %}
{{ forloop.counter }}
{% endfor %}
...
In Python, what is the difference between “.append()” and “+= []”?
...
In general case append will add one item to the list, while += will copy all elements of right-hand-side list into the left-hand-side list.
Update: perf analysis
Comparing bytecodes we can assume that append version wastes cycles in LOAD_ATTR + CALL_FUNCTION, and += version -- in BUILD_LIST. App...
How to create EditText with cross(x) button at end of it?
...n, or is there any property for EditText by which it is created automatically? I want the cross button to delete whatever text written in EditText .
...
Comparing two branches in Git? [duplicate]
I have two branches, branch_1 and branch_2 .
1 Answer
1
...
When and why should I use a namedtuple instead of a dictionary? [duplicate]
... to create a bunch of instances of a class like:
class Container:
def __init__(self, name, date, foo, bar):
self.name = name
self.date = date
self.foo = foo
self.bar = bar
mycontainer = Container(name, date, foo, bar)
and not change the attributes after you se...
Node.js, can't open files. Error: ENOENT, stat './path/to/file'
...eing called from.
To make a path relative to the script, you must use the __dirname variable.
var path = require('path');
path.join(__dirname, 'path/to/file')
or potentially
path.join(__dirname, 'path', 'to', 'file')
...