大约有 10,900 项符合查询结果(耗时:0.0242秒) [XML]
How to document a string type in jsdoc with limited possible values
I am having a function that accepts one string parameter. This parameter can have only one of a few defined possible values. What is the best way to document the same? Should shapeType be defined as enum or TypeDef or something else?
...
How to conditionally push an item in an observable array?
...e to the same object and you want to run custom comparison logic, then you can use ko.utils.arrayFirst like:
var match = ko.utils.arrayFirst(myObservableArray(), function(item) {
return itemToAdd.id === item.id;
});
if (!match) {
myObservableArray.push(itemToAdd);
}
...
Accessing dict_keys element by index in Python3
...
Call list() on the dictionary instead:
keys = list(test)
In Python 3, the dict.keys() method returns a dictionary view object, which acts as a set. Iterating over the dictionary directly also yields keys, so turning a dict...
How to prevent text in a table cell from wrapping
Does anyone know how I can prevent the text in a table cell from wrapping? This is for the header of a table, and the heading is a lot longer than the data under it, but I need it to display on only one line. It is okay if the column is very wide.
...
Using “label for” on radio buttons
... Hmm.. How do you make one label toggle between two radio buttons? You can't have two identical IDs... :/
– Nils Sens
Mar 2 '16 at 10:03
1
...
How do I vertically center UITextField Text?
...stantiating a UITextField and noticing that the text doesn't center vertically. Instead, it is flush with the top of my button, which I find kind of odd since I would expect the default to center it vertically. How can I center it vertically, or is there some default setting that I am missing?
...
How to navigate through the source code by parts in CamelCase (instead of whole words)?
...g CTRL and using left or right arrows Eclipse would navigate over the LongCamelCaseWrittenWord in several steps. One camel case word at time.
...
How to clone a case class instance and change just one field in Scala?
Let's say I have a case class that represents personas, people on different social networks. Instances of that class are fully immutable, and are held in immutable collections, to be eventually modified by an Akka actor.
...
MySQL SELECT WHERE datetime matches day (and not necessarily time)
...e DATE(datecolumns) = '2012-12-24' - it is a performance killer:
it will calculate DATE() for all rows, including those, that don't match
it will make it impossible to use an index for the query
It is much faster to use
SELECT * FROM tablename
WHERE columname BETWEEN '2012-12-25 00:00:00' AND ...
Is there a recommended format for multi-line imports?
... parentheses when importing more than one component and sort them alphabetically. Like so:
from Tkinter import (
Button,
Canvas,
DISABLED,
END,
Entry,
Frame,
LEFT,
NORMAL,
RIDGE,
Text,
Tk,
)
This has the added advantage of easily seeing what components ...