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How to compare objects by multiple fields
... implement a Comparator which compares two Person objects, and you can examine as many of the fields as you like. You can put in a variable in your comparator that tells it which field to compare to, although it would probably be simpler to just write multiple comparators.
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Python append() vs. + operator on lists, why do these give different results?
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To explain "why":
The + operation adds the array elements to the original array. The array.append operation inserts the array (or any object) into the end of the original array, which results in a reference to self in that spot (henc...
Fatal error: Maximum execution time of 300 seconds exceeded
I keep getting this PHP error:
18 Answers
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Why / when would it be appropriate to override ToString?
I'm studying C# and I wonder what the point and benefit of overriding ToString might be, as shown in the example below.
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What does a \ (backslash) do in PHP (5.3+)?
What does a \ do in PHP?
4 Answers
4
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What is the difference between `let` and `var` in swift?
What is the difference between let and var in Apple's Swift language?
30 Answers
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typeof for RegExp
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You can use instanceof operator:
var t = /^foo(bar)?$/i;
alert(t instanceof RegExp);//returns true
In fact, that is almost the same as:
var t = /^foo(bar)?$/i;
alert(t.constructor == RegExp);//returns true
Keep in mind that as RegE...
Avoid Android Lint complains about not-translated string
is it possible to specify that the strings in a file within the value-* directories are purposely not translated into other languages? I have a bunch of strings that are common for all the languages and need no translation, so I've created an unlocalized-strings.xml file within values directo...
Slowing speed of Viewpager controller in android
Is there any way to slow the scroll speed with the viewpager adaptor in android?
10 Answers
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