I find the Wikipedia definition pretty accurate: The Elvis operator is part of many programming languages, e.g. Additionally, the operator can throw an exception if null is returned. Otherwise the value of the second operand (which may be null) is returned. Perl相关代码片段 array pop in perl slice in perl grep command in perl what is qw in perl sort hash in perl remove first element from array in perl assign array to another array perl print hash in perl join in perl Groovy LDAP Search Tester find missing number in ascii range of numbers perl perl first and last character multidimensional array in perl perl trim whitespace and newline perl - for ($i=0 $i perl shebang perl explode string to array perl stdin operator how to fix a locale setting warning from perl size of string perl size o fstring perl perl now epoch last index array perl how to get last element of array in perl basename OR dirname perl perl hello world add to perl library include path perl item exist in array Perl print push to array perl perl modulus learn perl perl last characters perl string length perl print length of array perl perl hash size write function in perl Count the Array Length in perl search and replace in perl what is the difference between chomp and chop common using modules in perl perl get first characters insert query in perl perl foreach hash perl load files from directory that match pattern perl validate integer create database connection in perl with example perl comparison operators perl print hash perl set a specific datetime gcc make perl perl array loop perl write to file perl print array Perl - Common Conditional Statements split perl How to initialize an array how to launch a perl script First line perl How to run a pearl script difference between and $ in perl fonction perl print a variable perl comments in perl how to run a perl script Perl 6 Perl (perl 5.28.1) sample Perl (perl 2018.TL DR: If the resulting object reference is not null, it is returned.

Kotlin range operator