大约有 25,300 项符合查询结果（耗时：0.0492秒） [XML]
In Java, is there a way to write a string literal without having to escape quotes?
...
add a comment
|
142
...
How to know that a string starts/ends with a specific string in jQuery?
...
in jQuery I tried str.startsWith('some checking string ..') this gave me an error saying, startsWith method not found.. :( but str.match worked. Thanks for your answer
– Débora
Apr 22 '12 at 7:01
...
How can I set focus on an element in an HTML form using JavaScript?
...
Do this.
If your element is something like this..
<input type="text" id="mytext"/>
Your script would be
<script>
function setFocusToTextBox(){
document.getElementById("mytext").focus();
}
</script>
...
How to display pandas DataFrame of floats using a format string for columns?
I would like to display a pandas dataframe with a given format using print() and the IPython display() . For example:
7 ...
Using ViewPagerIndicator library with Android Studio and Gradle
...
Thank you. I did not want to add some random maven repository to my build script. This much better.
– Greg Ennis
Mar 13 '15 at 21:21
...
How to convert a string into double and vice versa?
I want to convert a string into a double and after doing some math on it, convert it back to a string.
12 Answers
...
Check that an email address is valid on iOS [duplicate]
...@interface NSString (emailValidation)
- (BOOL)isValidEmail;
@end
Implement
@implementation NSString (emailValidation)
-(BOOL)isValidEmail
{
BOOL stricterFilter = NO; // Discussion http://blog.logichigh.com/2010/09/02/validating-an-e-mail-address/
NSString *stricterFilterString = @"^[A-Z0-9...
Format a datetime into a string with milliseconds
I want to have a datetime string from the date with milliseconds. This code is typical for me and I'm eager to learn how to shorten it.
...
TextView.setTextSize behaves abnormally - How to set text size of textview dynamically for different
...
The difference here is that in the setTextSize(int size) method, the unit type by default is "sp" or "scaled pixels". This value will be a different pixel dimension for each screen density (ldpi, mdpi, hdpi).
getTextSize(), on the other hand, returns the actual pixel dimensions o...
Efficient way to remove keys with empty strings from a dict
...
Python 2.X
dict((k, v) for k, v in metadata.iteritems() if v)
Python 2.7 - 3.X
{k: v for k, v in metadata.items() if v is not None}
Note that all of your keys have values. It's just that some of those values are the empty string. There's no such thing...