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What do the different readystates in XMLHttpRequest mean, and how can I use them?
XMLHttpRequest has 5 readyState s, and I only use 1 of them (the last one, 4 ).
5 Answers
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Node.js/Windows error: ENOENT, stat 'C:\Users\RT\AppData\Roaming\npm'
...-bit. I installed the latest Node.js 32 bit.
When I try to run the command npm install jquery , I receive the error:
7...
Is there any difference between “!=” and “” in Oracle Sql?
...re are any differences in between the two not equal operators <> and != in Oracle.
4 Answers
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How can one change the timestamp of an old commit in Git?
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Use git filter-branch with an env filter that sets GIT_AUTHOR_DATE and GIT_COMMITTER_DATE for the specific hash of the commit you're looking to fix.
This will invalidate that and all future hashes.
Example:
If you wanted to change the dates of commit 119f9ecf58069b265ab22f1f97d2b648faf932...
Difference between android.app.Fragment and android.support.v4.app.Fragment
What is the difference between android.app.Fragment and android.support.v4.app.Fragment , and what are the circumstances in which each should be used?
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Make the current Git branch a master branch
...pository in Git. I made a branch, then did some changes both to the master and to the branch.
14 Answers
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How do lexical closures work?
.... This is exactly the problem, though - in this environment, i is mutated, and the closures all refer to the same i.
Here is the best solution I can come up with - create a function creater and invoke that instead. This will force different environments for each of the functions created, with a dif...
Multiple inheritance/prototypes in JavaScript
... false,
}));
}
Explanation
A proxy object consists of a target object and some traps, which define custom behavior for fundamental operations.
When creating an object which inherits from another one, we use Object.create(obj). But in this case we want multiple inheritance, so instead of obj I ...
SharedPreferences.onSharedPreferenceChangeListener not being called consistently
..., but eventually, will get garbage collected, removed from the WeakHashMap and stop working.
Keep a reference to the listener in a field of your class and you will be OK, provided your class instance is not destroyed.
i.e. instead of:
prefs.registerOnSharedPreferenceChangeListener(
new SharedPr...
vertical divider between two columns in bootstrap
I am using twitter bootstrap, and have a row which has two columns (span6). How do I create a vertical divider between both the spans.
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