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What is the difference between the mouseover and mouseenter events?
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Pandas conditional creation of a series/dataframe column
...
List comprehension is another way to create another column conditionally. If you are working with object dtypes in columns, like in your example, list comprehensions typically outperform most other methods.
Example list comprehension:
df['color'] = ['red' if x == 'Z' else 'green' for x in d...
How can I trigger an onchange event manually? [duplicate]
... Just FYI on this... MDN does mention this, but its not supported by IE10+ (arguably also modern by definition of the word modern..) and only in the nightly of Safari (as time of writing) IE10+ does have this constructor method but you need to specify the type of event, eg. MouseEvent or K...
Explicitly calling a default method in Java
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In Hibernate Validator 4.1+, what is the difference between @NotNull, @NotEmpty, and @NotBlank?
...ion 4.1):
The @NotNull constraint is defined as:
@Constraint(validatedBy = {NotNullValidator.class})
This class has an isValid method defined as:
public boolean isValid(Object object, ConstraintValidatorContext constraintValidatorContext) {
return object != null;
}
The @NotEmpty cons...
Parsing boolean values with argparse
...True, default=False,
help="Activate nice mode.")
allows me to use:
script --nice
script --nice <bool>
and still use a default value (specific to the user settings). One (indirectly related) downside with that approach is that the 'nargs' might catch a positional ar...
jQuery .each() index?
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Git update submodules recursively
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Get UIScrollView to scroll to the top
...ut if anyone else is as crazy as me - and your scrollview is at the bottom by default - this will scroll it to the top: [scrollView setContentOffset:CGPointMake(0, scrollView.contentSize.height-scrollView.frame.size.height) animated:YES];
– GilesDMiddleton
Apr ...
Move an item inside a list?
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