Method: Array#include?

Defined in:
array.c

#include?(object) ⇒ Boolean

Returns true if the given object is present in self (that is, if any element == object), otherwise returns false.

a = [ "a", "b", "c" ]
a.include?("b")   #=> true
a.include?("z")   #=> false

Returns:

  • (Boolean) 


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# File 'array.c', line 4339

VALUE
rb_ary_includes(VALUE ary, VALUE item)
{
    long i;
    VALUE e;

    for (i=0; i<RARRAY_LEN(ary); i++) {
	e = RARRAY_AREF(ary, i);
	if (rb_equal(e, item)) {
	    return Qtrue;
	}
    }
    return Qfalse;
}