This is a bit of a style preference since of course you can always write
the same thing with a for loop. However, I think sometimes the code
looks better when using this method.
It also provides an alternative to Sequence.map for cases where you
don't need the resulting list, and one that becomes especially necessary
when Sequence.map is changed to return a new sequence. The example in
the README.md file was using Sequence.map in a way that required this
alternative in that case.
When possible, they return the actual value from the predicate
instead of always just "true" and "false". This matches && and ||
which evaluate to the RHS or LHS when appropriate.
- "\x" escape sequence to put byte values in strings: "\x34"
- String.byteAt(index) gets value of byte in string.
- String.bytes returns a raw sequence of bytes for a string.
- String.codePointAt(index) gets the code point at an offset as a raw number.
Returns the number of elements in the sequence that pass the
`predicate`.
It could also have been implemented as:
count(f) { reduce(0) {|a, b| f.call(b) ? a + 1 : a } }
But I considered the simple version more readable.
Also documented Sequence.count.
The previous order, insert(element, index), was counter-intuitive.
I'm not aware of any list API that uses this order. I've checked:
* Ruby Array.insert(index, obj...)
* JavaScript array.splice(start, deleteCount[, item1[, item2[, ...]]])
* C++ / QList::insert(int i, const T & value)
* C++ / std::vector::insert
* Lua table.insert (list, [pos,] value)
* C# List<T>.Insert(int index, T item)
* Java Interface List<E>.add(int index, E element)
* Python list.insert(i, x)
So it seemed to me more like an oversight in Wren.
- Allow yielding the main fiber. This exits the interpreter. The
host can resume it by calling a method.
- Allow getting a reference to the current fiber.
- "make all" builds all combinations of configurations
- Binaries are built to "bin"
- (For convenience, the release interpreter also goes in the top level dir)
- Libraries are built to "lib"
This will also make it easier to support building and testing other
configurations like Nan tagging versus union, computed goto, etc.
