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Difference between attr_accessor and attr_accessible
...ode to (quickly) create setter and getter methods in a Class. That's all.
Now, what is missing as an explanation is that when you create somehow a link between a (Rails) model with a database table, you NEVER, NEVER, NEVER need attr_accessor in your model to create setters and getters in order to b...
Android: Vertical ViewPager [closed]
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@Brett I was using your solution. but now I am getting the swipping issue in andorid pie devices. Has any one facing same issue?
– Jishant
Jan 3 '19 at 10:38
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How to do a non-greedy match in grep?
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eegg: dot all modifier is also known as multiline. It's a modifier that changes the "." match behavior to include newlines (normally it doesn't). There's no such modifier in grep, but there is in pcregrep.
– A. Wilson
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Can I use my existing git repo with openshift?
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I know the question is 2-year old and the @adietisheim's answer has been accepted. I personally don't like to merge the openshift repo into my local clone because I don't want to mix the OpenShift repo into the master branch of ...
Nullable type issue with ?: Conditional Operator
...ked a bunch of times already. The compiler is telling you that it doesn't know how convert null into a DateTime.
The solution is simple:
DateTime? foo;
foo = true ? (DateTime?)null : new DateTime(0);
Note that Nullable<DateTime> can be written DateTime? which will save you a bunch of typin...
How does the following LINQ statement work?
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@M.C I don't know why you are asking this question. Whole answer was not given at a time. It was edited several times.
– Atish Dipongkor - MVP
Jul 18 '13 at 2:50
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Do declared properties require a corresponding instance variable?
...e Modern Objective-C Runtime (that's either iOS 3.x or greater, or 64-bit Snow Leopard or greater) then you do not need to define ivars for your properties in cases like this.
When you @synthesize the property, the ivar will in effect be synthesized also for you. This gets around the "fragile-ivar"...
Performance of Arrays vs. Lists
...sy to measure...
In a small number of tight-loop processing code where I know the length is fixed I use arrays for that extra tiny bit of micro-optimisation; arrays can be marginally faster if you use the indexer / for form - but IIRC believe it depends on the type of data in the array. But unless ...
How to set focus on input field?
...odal.
Define a directive and have it $watch a property/trigger so it knows when to focus the element:
Name: <input type="text" focus-me="shouldBeOpen">
app.directive('focusMe', ['$timeout', '$parse', function ($timeout, $parse) {
return {
//scope: true, // optionally cr...
Return from lambda forEach() in java
... a stream (I am assuming here that it is of type Collection<Player>, now you have a Stream<Player>.
Filter out all unwanted elements with a Predicate<Player>, mapping every player to the boolean true if it is wished to be kept.
Collect the resulting elements in a list, via a Collec...