method

filter!

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

1_8_6_287
1_8_7_72
1_8_7_330
1_9_1_378
1_9_2_180
1_9_3_125
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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This method is only available on newer versions. The first available version of the method is shown here.

filter!() public

Invokes the given block passing in successive elements from self, deleting elements for which the block returns a false value.

The array may not be changed instantly every time the block is called.

If changes were made, it will return self, otherwise it returns nil.

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

See also Array#keep_if.

Array#filter! is an alias for Array#select!.

Show source

static VALUE
rb_ary_select_bang(VALUE ary)
{
    struct select_bang_arg args;

    RETURN_SIZED_ENUMERATOR(ary, 0, 0, ary_enum_length);
    rb_ary_modify(ary);

    args.ary = ary;
    args.len[0] = args.len[1] = 0;
    return rb_ensure(select_bang_i, (VALUE)&args, select_bang_ensure, (VALUE)&args);
}

filter!

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