Comparison Operators listing : Comparison Operators « Language Basics « Perl






  1. Perl
  2. Language Basics
  3. Comparison Operators

Comparison Operators listing

    


#! /usr/local/bin/perl
$booleanResult = (4 == 4);

print '  4 == 4;    Results in ';
print "booleanResult = $booleanResult\n";

$booleanResult = (3 == 4);
print '  3 == 4;    Results in ';
print "booleanResult = $booleanResult\n";

$booleanResult = (4 != 4);
print '  4 != 4; Results in ';
print "booleanResult = $booleanResult\n";


$booleanResult = (3 != 4);
print '  3 != 4; Results in ';
print "booleanResult = $booleanResult\n";


$booleanResult = (4 < 4);
print '  4 < 4;       Results in ';
print "booleanResult = $booleanResult\n";

$booleanResult = (3 < 4);
print '  3 < 4;       Results in ';
print "booleanResult = $booleanResult\n";

$booleanResult = (5 < 4);
print '  5 < 4;       Results in ';
print "booleanResult = $booleanResult\n";

$booleanResult = (5 > 4);
print '  5 > 4;       Results in ';
print "booleanResult = $booleanResult\n";


$booleanResult = (3 > 4);
print '  3 > 4;       Results in ';
print "booleanResult = $booleanResult\n";

$booleanResult = (4 > 4);
print '  4 > 4;       Results in ';
print "booleanResult = $booleanResult\n";

$booleanResult = (4 >= 4);
print '  4 >= 4;      Results in ';
print "booleanResult = $booleanResult\n";

$booleanResult = (3 >= 4);
print '  3 >= 4;      Results in ';
print "booleanResult = $booleanResult\n";

$booleanResult = (5 >= 4);
print '  5 >= 4;      Results in ';
print "booleanResult = $booleanResult\n";

$booleanResult = (4 <= 4);
print '  4 <= 4;      Results in ';
print "booleanResult = $booleanResult\n";

$booleanResult = (5 <= 4);
print '  5 <= 4;      Results in ';
print "booleanResult = $booleanResult\n";

$booleanResult = (3 <= 4);
print '  3 <= 4;      Results in ';
print "booleanResult = $booleanResult\n";

$booleanResult = (4 <=> 4);
print '  4 <=> 4;     Results in ';
print "booleanResult = $booleanResult\n";

$booleanResult = (3 <=> 4);
print '  3 <=> 4;     Results in ';
print "booleanResult = $booleanResult\n";

$booleanResult = (5 <=> 4);
print '  5 <=> 4;     Results in ';
print "booleanResult = $booleanResult\n";

   
    


Operator         Example       Description

==               $a == 4;      Equal to

!=               $a != 4;      Not equal to

<                $a < 4;       Less than

>                $a > 4 ;      Greater than

>=               $a >= 4;      Greater than or equal to

<=               $a <= 4 ;     Less than or equal to

<=>              $a <=> 4 ;    Compare








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5.Comparing Numbers for Inequality
6.Equality Operators and Numeric Values
7.Equality Operators and String Values
8.If not equal
9.Integer-comparison operators.
10.Not equals operator: ne
11.Perl's operators for numeric comparisons
12.String comparison operator
13.String- and numeric-comparison operators.
14.Use eq to compare strings
15.Using eq in statement
16.Using ne in if statement
17.cmp with or
18.eq, ne, lt, gt operators
19.three-way-comparison becomes cmp.
20.<=> returns 0, -1 , or 1
21.Relational Operators and Numeric Values
22.Don't use == when you should use eq!
23.Relational Operators and String Values
24.Relational Operators demo
25.The numeric comparison operator evaluates its operands