Parameter
Last updated on
Jun 8, 2021
Description
iterates over a string and runs the closure function for each element in the string.
Returns
Nothing
Category
History
ColdFusion (2021 release): Added this function.
Syntax
StringEach(String string, UDFMethod callback)
StringEach(String string, UDFMethod callback)
StringEach(String string, UDFMethod callback)
Parameters
|
|
Description |
|---|---|
|
string |
(Required) The input string. |
|
callback |
(Required) Closure function executed for each element in the string. The syntax is: callback (element, index, string) |
Example
<cfscript>
myCities="St. Petersburg"
callback=function(city){
WriteOutput(city & "<br/>")
}
StringEach(myCities,callback)
</cfscript>
<cfscript>
myCities="St. Petersburg"
callback=function(city){
WriteOutput(city & "<br/>")
}
StringEach(myCities,callback)
</cfscript>
<cfscript>
myCities="St. Petersburg"
callback=function(city){
WriteOutput(city & "<br/>")
}
StringEach(myCities,callback)
</cfscript>
Output
S
t
.
P
e
t
e
r
s
b
u
r
g
EXAMPLE 2
<cfscript>
letters = "abcd"
callback=function(element,index){
writeOutput(#index#&":"&#element#&"<br/>")
}
StringEach(letters,callback)
</cfscript>
<cfscript>
letters = "abcd"
callback=function(element,index){
writeOutput(#index#&":"&#element#&"<br/>")
}
StringEach(letters,callback)
</cfscript>
<cfscript>
letters = "abcd"
callback=function(element,index){
writeOutput(#index#&":"&#element#&"<br/>")
}
StringEach(letters,callback)
</cfscript>
OUTPUT
1:a
2:b
3:c
4:d
