method

filter

Ruby latest stable (v2_5_5) - 0 notes - Class: Struct

1_8_6_287
1_8_7_72
1_8_7_330
1_9_1_378
1_9_2_180
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1_9_3_392
2_1_10
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2_4_6
2_5_5
2_6_3 (0)
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Method not available on this version

This method is only available on newer versions. The first available version of the method is shown here.

filter(*args) public

Yields each member value from the struct to the block and returns an Array containing the member values from the struct for which the given block returns a true value (equivalent to Enumerable#select).

Lots = Struct.new(:a, :b, :c, :d, :e, :f)
l = Lots.new(11, 22, 33, 44, 55, 66)
l.select {|v| v.even? }   #=> [22, 44, 66]

Struct#filter is an alias for Struct#select.

Show source

static VALUE
rb_struct_select(int argc, VALUE *argv, VALUE s)
{
    VALUE result;
    long i;

    rb_check_arity(argc, 0, 0);
    RETURN_SIZED_ENUMERATOR(s, 0, 0, struct_enum_size);
    result = rb_ary_new();
    for (i = 0; i < RSTRUCT_LEN(s); i++) {
        if (RTEST(rb_yield(RSTRUCT_GET(s, i)))) {
            rb_ary_push(result, RSTRUCT_GET(s, i));
        }
    }

    return result;
}

filter

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