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Update coldfusion.html.markdown

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Additions to the control structures. Added more user-friendly output for .cfm file
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wboka 2015-10-07 16:54:19 -04:00
parent b8ad751cc0
commit 88d1bb7c84
1 changed files with 85 additions and 58 deletions
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@ -9,6 +9,9 @@ ColdFusion is a scripting language for web development.
[Read more here.](http://www.adobe.com/products/coldfusion-family.html)
```ColdFusion
<em>HTML tags have been provided for output readability</em>
<!--- Comments start with "<!---" and end with "--->" --->
<!---
Comments can
@ -18,52 +21,77 @@ ColdFusion is a scripting language for web development.
--->
<!--- 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 --->
<cfoutput>#myVariable#<br /></cfoutput> <!--- myValue --->
<cfoutput>#myNumber#<br /></cfoutput> <!--- 3.14 --->
<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 --->
<cfdump var="#myArray1#" /> <!--- An empty array object --->
<p>Contents of <b>myArray2</b></p>
<cfdump var="#myArray2#" /> <!--- An empty array object --->
<!--- Operators --->
<!--- Arithmetic --->
<cfoutput>#1 + 1#<br /></cfoutput> = 2
<cfoutput>#10 - 8#<br /></cfoutput> = 2
<cfoutput>#1 * 2#<br /></cfoutput> = 2
<cfoutput>#10 / 5#<br /></cfoutput> = 2
<cfoutput>#12 % 5#<br /></cfoutput> = 0
<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 --->
<cfoutput>#1 eq 1#<br /></cfoutput> <!--- TRUE --->
<cfoutput>#15 neq 1#<br /></cfoutput> <!--- TRUE --->
<cfoutput>#10 gt 8#<br /></cfoutput> <!--- TRUE --->
<cfoutput>#1 lt 2#<br /></cfoutput> <!--- TRUE --->
<cfoutput>#10 gte 5#<br /></cfoutput> <!--- TRUE --->
<cfoutput>#1 lte 5#<br /></cfoutput> <!--- TRUE --->
<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#</cfoutput>
<cfoutput>#myCondition#. We're testing.</cfoutput>
<cfelseif myCondition eq "Production">
<cfoutput>#myCondition#. Proceed Carefully!!!</cfoutput>
<cfelse>
@ -73,54 +101,53 @@ ColdFusion is a scripting language for web development.
<hr />
<!--- Loops --->
<h1>Loops</h1>
<h2>For Loop</h2>
<cfloop from="0" to="10" index="i">
<cfoutput>#i# <br /></cfoutput>
<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 />
```
<!--
// For Each Loop
// The for loop is also able to iterate over arrays as well as objects
// that implement the Iterable interface.
int[] fooList = {1, 2, 3, 4, 5, 6, 7, 8, 9};
// for each loop structure => for (<object> : <iterable>)
// reads as: for each element in the iterable
// note: the object type must match the element type of the iterable.
for (int bar : fooList) {
System.out.println(bar);
//Iterates 9 times and prints 1-9 on new lines
}
// Switch Case
// A switch works with the byte, short, char, and int data types.
// It also works with enumerated types (discussed in Enum Types), the
// String class, and a few special classes that wrap primitive types:
// Character, Byte, Short, and Integer.
int month = 3;
String monthString;
switch (month) {
case 1: monthString = "January";
break;
case 2: monthString = "February";
break;
case 3: monthString = "March";
break;
default: monthString = "Some other month";
break;
}
System.out.println("Switch Case Result: " + monthString);
// Conditional Shorthand
// You can use the '?' operator for quick assignments or logic forks.
// Reads as "If (statement) is true, use <first value>, otherwise, use
// <second value>"
int foo = 5;
String bar = (foo < 10) ? "A" : "B";
System.out.println(bar); // Prints A, because the statement is true
////////////////////////////////////////
// Converting Data Types And Typecasting
////////////////////////////////////////