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Can HTML checkboxes be set to readonly?
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PS...if you want the checkbox to be in the checked state you need to add checked="checked", not mess with the javascript. The javascript is just there to force mouse clicks to be ignored on the input object, not to set state of th...
How to remove the first character of string in PHP?
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Be aware of unicode. If you're dealing with an arbitrary string (e.g. "Ål <- danish for eel"), you should use mb_substr and specify the encoding.
– Thomas Jensen
Jun 17 '12 at 11:22
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Why is '+' not understood by Python sets?
...for set union and & for set intersection.
Sets do implement - as set difference. You can also use ^ for symmetric set difference (i.e., it will return a new set with only the objects that appear in one set but do not appear in both sets).
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What's the best way to break from nested loops in JavaScript?
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Please consider accepting the other answer. If not for Andrew Hedges comment (thanks btw.), I would have thought: ah, so javascript does not have that feature. And I bet many in the community might overlook the comment and think just the same.
– J...
Rename Pandas DataFrame Index
...er:
df.rename_axis('names').rename_axis('attributes', axis='columns')
If you set the index with some of the columns, then the column name will become the new index level name. Let's append to index levels to our original DataFrame:
df1 = df.set_index(['state', 'color'], append=True)
df1
No...
Do threads have a distinct heap?
...istinct stack when the thread is created by the operating system. I wonder if each thread has a heap distinct to itself also?
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How to create a custom exception type in Java? [duplicate]
... message)
{
super(message);
}
}
Usage:
try
{
if(word.contains(" "))
{
throw new WordContainsException();
}
}
catch(WordContainsException ex)
{
// Process message however you would like
}
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Maintain/Save/Restore scroll position when returning to a ListView
...isible list item. But this item may be partially scrolled out of view, and if you want to restore the exact scroll position of the list you need to get this offset. So ListView.getChildAt(0) returns the View for the top list item, and then View.getTop() - mList.getPaddingTop() returns its relative o...
How to make graphics with transparent background in R using ggplot2?
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If you don't set the plot.background color like the answer above your plot will have a faint outline.
– jsta
Mar 15 '18 at 22:15
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Method Overloading for null argument
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Java will always try to use the most specific applicable version of a method that's available (see JLS §15.12.2).
Object, char[] and Integer can all take null as a valid value. Therefore all 3 version are applicable, so Java will have to find the most specific one...