Method: Enumerable#take_while

Defined in:
enum.c

#take_while {|arr| ... } ⇒ Array #take_while ⇒ Object

Passes elements to the block until the block returns nil or false, then stops iterating and returns an array of all prior elements.

If no block is given, an enumerator is returned instead.

a = [1, 2, 3, 4, 5, 0]
a.take_while { |i| i < 3 }   #=> [1, 2]

Overloads:

  • #take_while {|arr| ... } ⇒ Array

    Yields:

    • (arr)

    Returns:



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# File 'enum.c', line 2188

static VALUE
enum_take_while(VALUE obj)
{
    VALUE ary;

    RETURN_ENUMERATOR(obj, 0, 0);
    ary = rb_ary_new();
    rb_block_call(obj, id_each, 0, 0, take_while_i, ary);
    return ary;
}