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Why is there a `null` value in JavaScript?
...ing to null can give you an error. Often in this case setting to the empty string tends to work.
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Intercept page exit event
...some time to finish saving data');
};
break;
};
}; // no return string --> user will leave as normal but data is send to server
Edit:
See also Synchronous_AJAX and how to do that with jquery
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Generate a UUID on iOS from Swift
In my iOS Swift app I want to generate random UUID ( GUID ) strings for use as a table key, and this snippet appears to work:
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Android. Fragment getActivity() sometimes returns null
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Integer count = savedInstanceState.getInt("tabsCount");
String[] titles = savedInstanceState.getStringArray("titles");
for (int i = 0; i < count; i++){
adapter.addFragment(getFragment(i), titles[i]);
}
}
indicator.notifyDataSetChanged();
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How to set background color of an Activity to white programmatically?
...t to use one of your own custom colours, you can add your custom colour to strings.xml and then use the below to call it.
element.setBackgroundColor(R.color.mycolour);
However if you want to set the colour in your layout.xml you can modify and add the below to any element that accepts it.
androi...
Could someone explain the pros of deleting (or keeping) unused code?
...urprising ways: reflection, dynamically calling routines concatenated from strings, eval, framework magic.
However, if there is a high probability that code will be used in the future, it is easier to add if it's right there along the other code instead of in the version control system. You might n...
How to see JavaDoc in IntelliJ IDEA? [duplicate]
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When I do this for String.compareToIgnoreCase(), I only see the signature, not the explanation of the result. Do I need to change a setting to pull in the full JavaDoc?
– David W
Jan 22 '14 at 15:20
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How to append something to an array?
How do I append an object (such as a string or number) to an array in JavaScript?
30 Answers
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Call int() function on every list element?
I have a list with numeric strings, like so:
7 Answers
7
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How do you use vim's quickfix feature?
I'm a pretty new Vim user and I've found that its learning curve is quite steep (at least for me). I just installed this vim script for JavaScriptLint error checking, which shows errors in vim's quickfix window once I save a buffer.
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