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instance method

Date#monday?

d.monday? → bool

static VALUE
d_lite_monday_p(VALUE self)
{
    get_d1(self);
    return f_boolcast(m_wday(dat) == 1);
}

Returns true if the date is Monday.

See also #mon #month #mjd #new_start also in 4.1 · 4.0 · 3.4 · 3.3 · 3.2 · 3.1