method

filter!

v2_6_3 - Show latest stable - 0 notes - Class: Array

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What's this?

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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