Method: Array#take_while

Defined in:
array.c

#take_while {|obj| ... } ⇒ Array #take_while ⇒ Enumerator

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.

See also Array#drop_while

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

Overloads:



6250
6251
6252
6253
6254
6255
6256
6257
6258
6259
6260
 
# File 'array.c', line 6250

static VALUE
rb_ary_take_while(VALUE ary)
{
    long i;

    RETURN_ENUMERATOR(ary, 0, 0);
    for (i = 0; i < RARRAY_LEN(ary); i++) {
	if (!RTEST(rb_yield(RARRAY_AREF(ary, i)))) break;
    }
    return rb_ary_take(ary, LONG2FIX(i));
}