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Why does parseInt(1/0, 19) return 18?
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The result of 1/0 is Infinity.
parseInt treats its first argument as a string which means first of all Infinity.toString() is called, producing the string "Infinity". So it works the same as if you asked it to convert "Infinity" in base 19 to decimal.
Here are the digits in base 19 along with t...
Is there an eval() function in Java? [duplicate]
I have a string like the following:
12 Answers
12
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How to debug stream().map(…) with lambda expressions?
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static int timesTwo(int n) {
return n * 2;
}
public static void main(String[] args) {
List<Integer> naturals = Arrays.asList(3247,92837,123);
List<Integer> result =
naturals.stream()
.map(DebugLambda::timesTwo)
.collect(toList());
}
This mi...
Difference between method and function in Scala
...nd co-variant on the result.
That variance means that a Function1[Seq[T], String] is a subtype of Function1[List[T], AnyRef]. Being a subtype means it can be used in place of it. One can easily see that if I'm going to call f(List(1, 2, 3)) and expect an AnyRef back, either of the two types above w...
How do you get the current project directory from C# code when creating a custom MSBuild task?
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You can try one of this two methods.
string startupPath = System.IO.Directory.GetCurrentDirectory();
string startupPath = Environment.CurrentDirectory;
Tell me, which one seems to you better
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How can I output leading zeros in Ruby?
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Use the % operator with a string:
irb(main):001:0> "%03d" % 5
=> "005"
The left-hand-side is a printf format string, and the right-hand side can be a list of values, so you could do something like:
irb(main):002:0> filename = "%s/%s.%04d....
Scala: write string to file in one statement
... @Kakaji, could you please elaborate? I've just tested it with strings with newlines, and it works perfectly. It just cannot filter anything - Files.write() writes the byte array as a blob, without analyzing its contents. After all, in some binary data 0x0d byte may have important meanin...
Get String in YYYYMMDD format from JS date object?
I'm trying to use JS to turn a date object into a string in YYYYMMDD format. Is there an easier way than concatenating Date.getYear() , Date.getMonth() , and Date.getDay() ?
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How can I implode an array while skipping empty array items?
...ioned, that array_filter() by default filters off every false, null, empty string ('') and 0.
– Tadeck
May 12 '11 at 22:55
1
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Converting Integer to Long
...lueOf(i.longValue());
This avoids the performance hit of converting to a String. The longValue() method in Integer is just a cast of the int value. The Long.valueOf() method gives the vm a chance to use a cached value.
sha...