learnxinyminutes-docs/coldfusion.html.markdown

language	contributors	filename
ColdFusion	Wayne Boka http://wboka.github.io	LearnColdFusion.cfm

ColdFusion is a scripting language for web development. Read more here.

<em>HTML tags have been provided for output readability</em>

<!--- Comments start with "<!---" and end with "--->" --->
<!---
    Comments can
    also
    span
    multiple lines
--->

<!--- CFML tags have a similar format to HTML tags. --->
<h1>Simple Variables</h1>
<!--- Variable Declaration: Variables are loosely typed, similar to javascript --->
<p>Set <b>myVariable</b> to "myValue"</p>
<cfset myVariable = "myValue" />
<p>Set <b>myNumber</b> to 3.14</p>
<cfset myNumber = 3.14 />

<!--- Displaying simple data --->
<!--- Use <cfoutput> for simple values such as strings, numbers, and expressions --->
<p>Display <b>myVariable</b>: <cfoutput>#myVariable#</cfoutput></p><!--- myValue --->
<p>Display <b>myNumber</b>: <cfoutput>#myNumber#</cfoutput></p><!--- 3.14 --->

<hr />

<h1>Complex Variables</h1>
<!--- Declaring complex variables --->
<!--- Declaring an array of 1 dimension: literal or bracket notation --->
<p>Set <b>myArray1</b> to an array of 1 dimension using literal or bracket notation</p>
<cfset myArray1 = [] />
<!--- Declaring an array of 1 dimension: function notation --->
<p>Set <b>myArray2</b> to an array of 1 dimension using function notation</p>
<cfset myArray2 = ArrayNew(1) />

<!--- Outputting complex variables --->
<p>Contents of <b>myArray1</b></p>
<cfdump var="#myArray1#" /> <!--- An empty array object --->
<p>Contents of <b>myArray2</b></p>
<cfdump var="#myArray2#" /> <!--- An empty array object --->

<!--- Operators --->
<!--- Arithmetic --->
<h1>Operators</h1>
<h2>Arithmetic</h2>
<p>1 + 1 = <cfoutput>#1 + 1#</cfoutput></p>
<p>10 - 7 = <cfoutput>#10 - 7#<br /></cfoutput></p>
<p>15 * 10 = <cfoutput>#15 * 10#<br /></cfoutput></p>
<p>100 / 5 = <cfoutput>#100 / 5#<br /></cfoutput></p>
<p>120 % 5 = <cfoutput>#120 % 5#<br /></cfoutput></p>
<p>120 mod 5 = <cfoutput>#120 mod 5#<br /></cfoutput></p>

<hr />

<!--- Comparison --->
<h2>Comparison</h2>
<h3>Standard Notation</h3>
<p>Is 1 eq 1? <cfoutput>#1 eq 1#</cfoutput></p>
<p>Is 15 neq 1? <cfoutput>#15 neq 1#</cfoutput></p>
<p>Is 10 gt 8? <cfoutput>#10 gt 8#</cfoutput></p>
<p>Is 1 lt 2? <cfoutput>#1 lt 2#</cfoutput></p>
<p>Is 10 gte 5? <cfoutput>#10 gte 5#</cfoutput></p>
<p>Is 1 lte 5? <cfoutput>#1 lte 5#</cfoutput></p>

<h3>Alternative Notation</h3>
<p>Is 1 == 1? <cfoutput>#1 eq 1#</cfoutput></p>
<p>Is 15 != 1? <cfoutput>#15 neq 1#</cfoutput></p>
<p>Is 10 > 8? <cfoutput>#10 gt 8#</cfoutput></p>
<p>Is 1 < 2? <cfoutput>#1 lt 2#</cfoutput></p>
<p>Is 10 >= 5? <cfoutput>#10 gte 5#</cfoutput></p>
<p>Is 1 <= 5? <cfoutput>#1 lte 5#</cfoutput></p>

<hr />

<!--- Control Structures --->
<h1>Control Structures</h1>

<cfset myCondition = "Test" />

<p>Condition to test for: "<cfoutput>#myCondition#</cfoutput>"</p>

<cfif myCondition eq "Test">
    <cfoutput>#myCondition#. We're testing.</cfoutput>
<cfelseif myCondition eq "Production">
    <cfoutput>#myCondition#. Proceed Carefully!!!</cfoutput>
<cfelse>
    myCondition is unknown
</cfif>

<hr />

<!--- Loops --->
<h1>Loops</h1>
<h2>For Loop</h2>
<cfloop from="0" to="10" index="i">
	<p>Index equals <cfoutput>#i#</cfoutput></p>
</cfloop>

<h2>For Each Loop (Complex Variables)</h2>

<p>Set <b>myArray3</b> to [5, 15, 99, 45, 100]</p>

<cfset myArray3 = [5, 15, 99, 45, 100] />

<cfloop array="#myArray3#" index="i">
	<p>Index equals <cfoutput>#i#</cfoutput></p>
</cfloop>

<p>Set <b>myArray4</b> to ["Alpha", "Bravo", "Charlie", "Delta", "Echo"]</p>

<cfset myArray4 = ["Alpha", "Bravo", "Charlie", "Delta", "Echo"] />

<cfloop array="#myArray4#" index="s">
	<p>Index equals <cfoutput>#s#</cfoutput></p>
</cfloop>

<h2>Switch Statement</h2>

<p>Set <b>myArray5</b> to [5, 15, 99, 45, 100]</p>

<cfset myArray5 = [5, 15, 99, 45, 100] />

<cfloop array="#myArray5#" index="i">
	<cfswitch expression="#i#">
		<cfcase value="5,15,45" delimiters=",">
			<p><cfoutput>#i#</cfoutput> is a multiple of 5.</p>
		</cfcase>
		<cfcase value="99">
			<p><cfoutput>#i#</cfoutput> is ninety-nine.</p>
		</cfcase>
		<cfdefaultcase>
			<p><cfoutput>#i#</cfoutput> is not 5, 15, 45, or 99.</p>
		</cfdefaultcase> 
	</cfswitch> 
</cfloop>

<hr />

Further Reading

The links provided here below are just to get an understanding of the topic, feel free to Google and find specific examples.