Class: TrueClass
Overview
*********************************************************************
The global value <code>true</code> is the only instance of class
TrueClass and represents a logically true value in
boolean expressions. The class provides operators allowing
<code>true</code> to be used in logical expressions.
Instance Method Summary collapse
-
#&(obj) ⇒ Boolean
And—Returns
falseif obj isnilorfalse,trueotherwise. - #=== ⇒ Object
-
#^(obj) ⇒ Object
Exclusive Or—Returns
trueif obj isnilorfalse,falseotherwise. -
#to_s ⇒ Object
(also: #inspect)
The string representation of
trueis “true”. -
#|(obj) ⇒ true
Or—Returns
true.
Instance Method Details
#&(obj) ⇒ Boolean
And—Returns false if obj is nil or false, true otherwise.
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# File 'object.c', line 1438 static VALUE true_and(VALUE obj, VALUE obj2) { return RTEST(obj2)?Qtrue:Qfalse; } |
#=== ⇒ Object
#^(obj) ⇒ Object
Exclusive Or—Returns true if obj is nil or false, false otherwise.
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# File 'object.c', line 1476 static VALUE true_xor(VALUE obj, VALUE obj2) { return RTEST(obj2)?Qfalse:Qtrue; } |
#to_s ⇒ Object Also known as: inspect
The string representation of true is “true”.
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# File 'object.c', line 1423 static VALUE true_to_s(VALUE obj) { return rb_cTrueClass_to_s; } |
#|(obj) ⇒ true
Or—Returns true. As obj is an argument to a method call, it is always evaluated; there is no short-circuit evaluation in this case.
true | puts("or")
true || puts("logical or")
produces:
or
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# File 'object.c', line 1460 static VALUE true_or(VALUE obj, VALUE obj2) { return Qtrue; } |