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instance method

Module#class_variable_get

mod.class_variable_get(symbol) → obj

mod.class_variable_get(string) → obj

static VALUE
rb_mod_cvar_get(VALUE obj, VALUE iv)
{
    ID id = id_for_var(obj, iv, class);

    if (!id) {
        rb_name_err_raise("uninitialized class variable %1$s in %2$s",
                          obj, iv);
    }
    return rb_cvar_get(obj, id);
}

Returns the value of the given class variable (or throws a NameError exception). The @@ part of the variable name should be included for regular class variables. String arguments are converted to symbols.

Example

class Fred
  @@foo = 99
end
Fred.class_variable_get(:@@foo)     #=> 99

See also #class_variable_defined? #class_variables #class_exec #class_variable_set also in 4.1 · 4.0 · 3.4 · 3.3 · 3.2 · 3.0

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