大约有 41,000 项符合查询结果（耗时：0.0624秒） [XML]
How can I add a class to a DOM element in JavaScript?
How do I add a class for the div ?
10 Answers
10
...
Getting value of public static final field/property of a class in Java via reflection
...value. If you know the type you can use one of the get methods with null (for static fields only, in fact with a static field the argument passed to the get method is ignored entirely). Otherwise you can use getType and write an appropriate switch as below:
Field f = R.class.getField("_1st");
Class...
Convert Unix timestamp to a date string
...digits instead of 13), otherwise you'll get invalid results (this is true for macOS' date).
– emerino
Jun 4 '18 at 17:29
...
Positive Number to Negative Number in JavaScript?
...itive
-Math.abs(num) => Always negative
You do realize however, that for your code
if($this.find('.pdxslide-activeSlide').index() < slideNum-1){ slideNum = -slideNum }
console.log(slideNum)
If the index found is 3 and slideNum is 3,
then 3 < 3-1 => false
so slideNum remains positive...
Generating CSV file for Excel, how to have a newline inside a value
I need to generate a file for Excel, some of the values in this file contain multiple lines.
19 Answers
...
Sending data back to the Main Activity in Android
...ctivity is used to get user input - such as choosing a contact from a list or entering data in a dialog box. In this case you should use startActivityForResult to launch your child Activity.
This provides a pipeline for sending data back to the main Activity using setResult. The setResult method ta...
Django admin: How to display a field that is marked as editable=False' in the model?
...
Use Readonly Fields. Like so (for django >= 1.2):
class MyModelAdmin(admin.ModelAdmin):
readonly_fields=('first',)
share
|
improve this answer
...
How do I import the Django DoesNotExist exception?
...
You don't need to import it - as you've already correctly written, DoesNotExist is a property of the model itself, in this case Answer.
Your problem is that you are calling the get method - which raises the exception - before it is passed to ass...
Is it possible to reopen a closed branch in Mercurial?
...
Thanks for pointing it out - I'd assumed that changes were implied by doing a commit, but of course if you simply want to remove the closed flag you can't without a change.
– Tim Delaney
Jun 9 '...
Replace one character with another in Bash
...nly
bar=${foo/ /.}
# replace all blanks
bar=${foo// /.}
See http://tldp.org/LDP/abs/html/string-manipulation.html for more details.
share
|
improve this answer
|
follow
...