String interpolation: Difference between revisions

Revision as of 03:56, 29 November 2011

Revision as of 13:37, 31 March 2012

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{{Orphan|date=February 2011}}

'''String interpolation''' is a common feature in many [[programming language]]s such as [[Ruby (programming language)|Ruby]], [[PHP]], [[Perl]], [[ColdFusion]], etc. It means to insert a [[String (computer science)|string]] or replace a variable with its value. It makes string formatting and specifying contents more intuitive.<ref>http://perlmeme.org/howtos/using_perl/interpolation.html</ref>

== Examples ==

Line 53:

<source lang="text">

I have 4 apples

</source>

=== ColdFusion ===

<source lang="cfm">

<!--- variable and expressions can be added during string creation and output --->

<cfset name = "Dan" />

<cfset fruit = ['apples', 'pears', 'bananas'] />

<cfset phrase = "I have #arraylen(fruit)# types of fruit, such as #fruit[1]#" />

<cfoutput>

<p>Hi #Dan#,</p>

<p>I just wanted to let you know #phrase#.</p>

<p>Types:</p>

<ul>

<cfloop array="#fruit#" index="type">

<li>#type#</li>

</cfloop>

</ul>

</cfoutput>

</source>