Results for: "minmax"

This is a null install as a locked specification is considered installed. options are ignored.

Installs this specification using the Gem::Installer options. The install method yields a Gem::Installer instance, which indicates the gem will be installed, or nil, which indicates the gem is already installed.

After installation spec is updated to point to the just-installed specification.

This is a null install as this gem was unpacked into a directory. options are ignored.

Returns the line number of this frame.

For example, using caller_locations.rb from Thread::Backtrace::Location

loc = c(0..1).first
loc.lineno #=> 2

Returns the same as calling inspect on the string representation of to_str

if /foo/ then end

^^^^^

Returns a new lazy enumerator with the concatenated results of running block once for every element in the lazy enumerator.

["foo", "bar"].lazy.flat_map {|i| i.each_char.lazy}.force
#=> ["f", "o", "o", "b", "a", "r"]

A value x returned by block is decomposed if either of the following conditions is true:

• x responds to both each and force, which means that x is a lazy enumerator.

• x is an array or responds to to_ary.

Otherwise, x is contained as-is in the return value.

[{a:1}, {b:2}].lazy.flat_map {|i| i}.force
#=> [{:a=>1}, {:b=>2}]

Like Enumerable#select, but chains operation to be lazy-evaluated.

Like Enumerable#filter_map, but chains operation to be lazy-evaluated.

(1..).lazy.filter_map { |i| i * 2 if i.even? }.first(5)
#=> [4, 8, 12, 16, 20]

If a block is given, returns a lazy enumerator that will iterate over the given block for each element with an index, which starts from offset, and returns a lazy enumerator that yields the same values (without the index).

If a block is not given, returns a new lazy enumerator that includes the index, starting from offset.

offset

the starting index to use

See Enumerator#with_index.

Like Enumerable#map, but chains operation to be lazy-evaluated.

(1..Float::INFINITY).lazy.map {|i| i**2 }
#=> #<Enumerator::Lazy: #<Enumerator::Lazy: 1..Infinity>:map>
(1..Float::INFINITY).lazy.map {|i| i**2 }.first(3)
#=> [1, 4, 9]

Sets MAC parameters and generates MAC over the PKCS #12 structure.

This method uses HMAC and the PKCS #12 specific password-based KDF as specified in the original PKCS #12.

See also the man page PKCS12_set_mac(3).

Added in version 3.3.0.