大约有 46,000 项符合查询结果（耗时：0.0507秒） [XML]
jQuery: Get selected element tag name
... particularly if you are in a each()-like situation, where you have to cast the element back to a jquery object to get a property that was already there, like $(this).prop('tagname'). this.nodeName is often more efficient. +1
– commonpike
Nov 29 '12 at 12:2...
Round to 5 (or other number) in Python
...is is me being paranoid but I prefer to use floor() and ceil() rather than casting: base * floor(x/base)
– user666412
Apr 5 '17 at 16:06
1
...
Android and setting width and height programmatically in dp units
...
Note that the return value is actually an int, so it gets cast to a float.
– CorayThan
Jan 26 '17 at 22:26
...
How to randomly pick an element from an array
... gives you a double between 0.0 (inclusive) and array.length (exclusive)
Casting to int will round down giving you and integer between 0 (inclusive) and array.length-1 (inclusive)
share
|
improve ...
View array in Visual Studio debugger? [duplicate]
...
Note that you can also use a cast in the debug view. If pArray is of type void* you can type (char*) pArray, 10 which will display the content of the array interpreted as char.
– VoidStar
Aug 15 '13 at 9:26
...
Add & delete view from Layout
...oup extends View implements ViewParent, ViewManager. nicer to call it with casting to (ViewGroup)
– Mercury
Apr 25 '17 at 21:30
...
In Typescript, How to check if a string is Numeric
...isNumeric(val: any): val is number | string {
// parseFloat NaNs numeric-cast false positives (null|true|false|"")
// ...but misinterprets leading-number strings, particularly hex literals ("0x...")
// subtraction forces infinities to NaN
// adding 1 corrects loss of precision from parseFloa...
Difference between Convert.ToString() and .ToString()
...pty string or throw an exception? It's kind of like the difference between casting and using as: silent conversion.
– styfle
Sep 25 '12 at 23:18
...
Regex using javascript to return just numbers
...remember that you're getting a string back; if you actually need a number, cast the result:
item=item.replace('^.*\D(\d*)$', '$1');
if (!/^\d+$/.test(item)) throw 'parse error: number not found';
item=Number(item);
If you're dealing with numeric item ids on a web page, your code could also useful...
ArrayIndexOutOfBoundsException when using the ArrayList's iterator
...Next();) {
x = iterator.next();
//do some stuff
}
Its a good practice to cast and use the object.
For example, if the 'arrayList' contains a list of 'Object1' objects. Then, we can re-write the code as:
for(Iterator iterator = arrayList.iterator(); iterator.hasNext();) {
x = (Object1) iterator.ne...