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Perl unshift Function
Description
This function places the elements from LIST, in order, at the beginning of ARRAY. This is opposite function to shift().
Syntax
Following is the simple syntax for this function −
unshift ARRAY, LIST
Return Value
This function returns the number of new elements in ARRAY.
Example
Following is the example code showing its basic usage −
#!/usr/bin/perl -w @array = ( 1, 2, 3, 4); print "Value of array is @array\n" ; unshift( @array, 20, 30, 40 ); print "Now value of array is @array\n" ;
When above code is executed, it produces the following result −
Value of array is 1 2 3 4 Now value of array is 20 30 40 1 2 3 4
perl_function_references.htm
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