method

take

v1_8_7_72 - Show latest stable - 0 notes - Class: Enumerable

1_8_6_287
1_8_7_72 (0)
1_8_7_330 (0)
1_9_1_378 (-25)
1_9_2_180 (-1)
1_9_3_125 (0)
1_9_3_392 (0)
2_1_10 (0)
2_2_9 (38)
2_4_6 (0)
2_5_5 (0)
2_6_3 (0)
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take(p1) public

Returns first n elements from enum.

   a = [1, 2, 3, 4, 5, 0]
   a.take(3)             # => [1, 2, 3]

Show source

/*
 *  call-seq:
 *     enum.take(n)               => array
 *
 *  Returns first n elements from <i>enum</i>.
 *
 *     a = [1, 2, 3, 4, 5, 0]
 *     a.take(3)             # => [1, 2, 3]
 *
 */

static VALUE
enum_take(obj, n)
    VALUE obj;
    VALUE n;
{
    VALUE args[2];
    long len = NUM2LONG(n);

    if (len < 0) {
        rb_raise(rb_eArgError, "attempt to take negative size");
    }

    args[1] = len;
    args[0] = rb_ary_new();
    rb_block_call(obj, id_each, 0, 0, take_i, (VALUE)args);
    return args[0];
}

take

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