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How can I count the number of children?
...tract 1 if you don't want to include the default text node (which is empty by default). Thus, you'd use the following:
var count = elem.childNodes.length - 1;
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Remove background drawable programmatically in Android
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Try this
RelativeLayout relative = (RelativeLayout) findViewById(R.id.widget29);
relative.setBackgroundResource(0);
Check the setBackground functions in the RelativeLayout documentation
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How do I create a new Git branch from an old commit? [duplicate]
...erefore you're on a detached HEAD), you can create a branch at that commit by just using git branch <branchname> or git checkout -b <branchname> (no SHA1 argument required for the same commit).
– ADTC
Aug 26 '14 at 9:31
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List all virtualenv
... This will list only conda environments, not those generated by pip.
– 7bStan
Nov 8 '19 at 6:02
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Event for Handling the Focus of the EditText
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This does not work. If the keyboard was hide by "enter" or hide keyboard button on some devices, the "lost the focus" won't be fired. If you focus on edit text again, it won't file "got the focus" either.
– SnowWolf
May 26 '16 at 1...
jQuery .on function for future elements, as .live is deprecated [duplicate]
... $(document).on("click", "a.offsite", function () { alert("Goodbye!"); });
– jhanifen
Nov 12 '12 at 22:54
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Disable form auto submit on button click
...t type="button" to change that. type="submit" is the default (as specified by the HTML recommendation).
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Calling filter returns [duplicate]
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It's an iterator returned by the filter function.
If you want a list, just do
list(filter(f, range(2, 25)))
Nonetheless, you can just iterate over this object with a for loop.
for e in filter(f, range(2, 25)):
do_stuff(e)
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DTO and DAO concepts and MVC [closed]
...tName(String name);
//.....
}
interface PersonDAO {
PersonDTO findById(long id);
void save(PersonDTO person);
//.....
}
The MVC is a wider pattern. The DTO/DAO would be your model in the MVC pattern.
It tells you how to organize the whole application, not just the part responsible...
A simple jQuery form validation script [closed]
... people using jQuery are looking for the cross-browser consistency you get by moving away from browser features which vary greatly from brand to brand. I also prefer to stick with popular plugins that have a huge base of support, and if the developer is also part of the jQuery Team, all the better,...