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Check that Field Exists with MongoDB
So I'm attempting to find all records who have a field set and isn't null.
4 Answers
4...
Is there a better way to do optional function parameters in JavaScript? [duplicate]
... Well, you aren't talking about optional parameters - you really are passing a parameter, so this solution doesn't apply to your case. NaN doesn't mean "undefined" - it means you've passing a number but its value is NaN. See stackoverflow.com/questions/3215120/… for more
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Correct approach to global logging in Golang
...d a pointer to that log.Logger?
log.New returns a *Logger which is usually an indication that you should pass the object around as a pointer. Passing it as value would create a copy of the struct (i.e. a copy of the Logger) and then multiple goroutines might write to the same io.Writer concurre...
How do I check CPU and Memory Usage in Java?
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If you are looking specifically for memory in JVM:
Runtime runtime = Runtime.getRuntime();
NumberFormat format = NumberFormat.getInstance();
StringBuilder sb = new StringBuilder();
long maxMemory = runtime.maxMemory();
long allocatedMemory = runtime...
How to configure socket connect timeout
... Another thing too look out for... If instead of putting null in for the callback and you plan to EndConnect(), if the socket has been closed then this will give you an exception. So make sure you check...
– poy
Jan 28 '13 at 16:50
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Is it possible to use AutoLayout with UITableView's tableHeaderView?
...viewDidLoad
{
[super viewDidLoad];
self.header = [[SCAMessageView alloc] init];
self.header.titleLabel.text = @"Warning";
self.header.subtitleLabel.text = @"This is a message with enough text to span multiple lines. This text is set at runtime and might be short or long.";
//se...
Is there an easy way to add a border to the top and bottom of an Android View?
...so see this solution, which also works for TextViews, if you want a border all around: stackoverflow.com/questions/3263611/…
– emmby
Dec 9 '10 at 20:09
26
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In Firebase, is there a way to get the number of children of a node without loading all the node dat
...a transaction secure though? It seems it could be easily hacked to artificially increase counts. This could be bad for voting systems.
– Soviut
Apr 7 '14 at 6:10
16
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Best practices to test protected methods with PHPUnit
... not be coupled with the test. This makes refactoring impossible and eventually you don't test what needs to be tested. You need to test them indirectly using public methods. If you find this difficult, almost sure that there is a problem with the composition of the class and you need to separate it...
How can I stop .gitignore from appearing in the list of untracked files?
...on.
So, add it to your repository, it should not be gitignored.
If you really want you can add .gitignore to the .gitignore file if you don't want it to be committed. However, in that case it's probably better to add the ignores to .git/info/exclude, a special checkout-local file that works just l...