Dave's Brain

Browse - programming tips - perl insert into array

Date: 2011aug10
Language: perl

Q.  How do I insert an element into a perl array?

A.  Use splice() with the third parameter (how much to delete) set to zero.

	@a = qw(aaa bbb ccc ddd);
	# To insert 'NEW THING' at position 2:
	splice(@a, 2, 0, 'NEW THING');
	

	# To duplicate element $index in array @a
	splice(@a, $index, 0, $a[$index]);

Use push() when you want to add something at the end.

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