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Maven build failed: “Unable to locate the Javac Compiler in: jre or jdk issue”
I have my JAVA_HOME set to:
32 Answers
32
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count (non-blank) lines-of-code in bash
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variation for a Rails app: find . -path './log' -prune -o -path './trunk' -prune -o -path './branches' -prune -o -path './vendor' -prune -o -path './tmp' -prune -o -print | egrep '\.rb|\.erb|\.css|\.js|\.yml' | grep -v 'svn' | xargs cat | sed ...
How to stop EditText from gaining focus at Activity startup in Android
...setting android:focusableInTouchMode="true" to parent layout was the good approach thanks @Muhammad Babar
– sujith s
Mar 24 '15 at 10:15
8
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Checking if array is multidimensional or not?
...n' could be anywhere. If it has to be in the first item, you'd just do
is_array($arr[0]);
But, the most efficient general way I could find is to use a foreach loop on the array, shortcircuiting whenever a hit is found (at least the implicit loop is better than the straight for()):
$ more multi....
Access object child properties using a dot notation string [duplicate]
...nd set() methods.
Getting
var object = { 'a': [{ 'b': { 'c': 3 } }] };
_.get(object, 'a[0].b.c');
// → 3
Setting
var object = { 'a': [{ 'b': { 'c': 3 } }] };
_.set(object, 'a[0].b.c', 4);
console.log(object.a[0].b.c);
// → 4
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Is the != check thread safe?
...g/Object;
ALOAD 0
GETFIELD test/Test1.a : Ljava/lang/Object;
IF_ACMPEQ L1
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as we can see it loads field a to local vars twice, it's a non-atomic operation, if a was changed in between by another thread comparison may produce false.
Also, memory visibility problem is relevant here...
How to detect online/offline event cross-browser?
...cable.
Mozilla Firefox (before version 41), Opera, and IE take a different approach, and consider you "online" unless you explicitly pick "Offline Mode" in the browser - even if you don't have a working network connection.
There are valid arguments for the Firefox/Mozilla behavior, which are outline...
Recover from git reset --hard?
...AD@{5}: commit: restore admin
ecd2c1d HEAD@{6}: commit: re-enable settings app
# the commit the HEAD to be pointed to is 7c49ec7 (restore dependencies to the User model)
$ git reset HEAD@{2}
You got your day back! :)
shar...
Amazon S3 - HTTPS/SSL - Is it possible? [closed]
...questions regarding this without any real answers or information (or so it appeared).
4 Answers
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In an array of objects, fastest way to find the index of an object whose attributes match a search
...y your criteria. For example: function hashf(el) { return String(el.id) + "_" + String(el.name); }. This is just a hint: elementPos = array.map(hashf(x)).indexOf(hash({id:3, name:'Pablo'})); Obviously, the hash function I provide is not valid for all cases since '_' could form part of your values bu...