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Microsoft® JScript
Comparison Operators
Language Reference |

Used to compare expressions.


result = expression1 comparisonoperator expression2

Comparison operators have these parts:

resultAny variable.
expressionAny expression.

comparisonoperatorAny comparison operator.

expression2Any expression.


The following table contains a list of the comparison operators and the conditions that determine whether result is True, False, or Null:

OperatorDescription True if False if
< Less than expression1 < expression2 expression1 >= expression2
<= Less than or equal to expression1 <= expression2 expression1 > expression2
> Greater than expression1 > expression2 expression1 <= expression2
>= Greater than or equal to expression1 >= expression2 expression1 < expression2
== Equal to expression1 == expression2 expression1 != expression2
!= Not equal to expression1 != expression2 expression1 == expression2

When comparing two expressions, you may not be able to easily determine whether the expressions are being compared as numbers or as strings. The following table shows how expressions are compared or what results from the comparison, depending on the underlying subtype:


obj = Object, as = Alphanumeric String, ns = Numeric String, num = Number, bool = Boolean, undef = Undefined, null = Null value.
F = false, T = true, S = string, N = numeric, E = error.

© 1996 by Microsoft Corporation.

See also:

file: /Techref/language/asp/js/66.htm, 6KB, , updated: 1996/11/22 10:12, local time: 2020/1/19 22:44,

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