ArrayFindAll

Note:

You can also set the maximum thread count in ColdFusion Administrator. Click Server Settings > Settings and specify the number of threads in Default Maximum Thread Count For Parallel Functions.

Description

Searches an array for all positions of a specified object. The function searches for simple objects such as strings and numbers or for complex objects such as structures. When the second parameter is a simple object, string searches are case-sensitive. This function does not support searches for COM and CORBA objects.

Returns

Array of indices in which the object was found.

History

ColdFusion (2021 release): Introduced the following parameters:

  • parallel
  • maxThreadCount

Category

Syntax

arrayFindAll(array, value or callback [, parallel] [, maxThreadCount])

See also

History

ColdFusion (2021 release): Introduced the following parameters:

  • parallel
  • maxThreadCount

ColdFusion (2018 release): Introduced named parameters.

ColdFusion 10: Added this function.

Parameters

Parameter

Description

array

Array to search in.

value

Value to search for in the array.

callback

Inline function executed for each element in the array. Returns true if the array elements match the search criterion.

parallel

True if you want to enable parallel programming.

maxThreadCount

The number of threads the function can execute. The number of threads must be between 1-50. If the value exceeds 50, there is an exception.

Example

<cfscript>
writeDump(ArrayFindAll(["STRING","string"], "string"));
writeDump(ArrayFindAll(["STRING","string"], function(s) {if(compare(s, "string")==0) return true; return false;}));
</cfscript>

Using parallelization

<cfscript> 
 for(i=1;i<=100001;i++){ 
   
  if(i == 554) 
   arr[i]= -2147483648 
  else if(i == 768) 
   arr[i]=200 
  else 
   arr[i] = i*2; 
 } 
 
 writeoutput("<br>ArrayFindAll with parallel set to false: ")  
 writeoutput(arrayfindall(arr,200,false)[1])  
  
  
writeoutput("<br>ArrayFindAll with 5 parallel threads: ")   
writeoutput(arrayfindall(arr,200,true,5)[1])  
  
  
 writeoutput("<br>ArrayFindAll with negative number of  threads: ") 
 try{ 
  arr.findall(200,true,-10) 
} 
catch(any e){ 
  writeoutput("Type: " & e.type & " Message:" &  e.message  ) 
} 
writeoutput("<br>ArrayFindAll with 20 parallel threads: ")  
writeoutput(arrayfindall(array=arr,value=200,parallel=true,maxthreadcount=20)[1]) 
 
  
  
 writeoutput("<br>ArrayFindAll with more than 50 parallel threads: ") 
 try{ 
  arr.findall(200,true,100) 
} 
catch(any e){ 
  writeoutput("Type: " & e.type & " Message:" &  e.message  ) 
} 
  
 writeoutput("<br>ArrayFindAll with parallel and with no threads specified, will take thread count from cf admin:  ") 
writeoutput(arr.findall(200,true)[1]) 
  
  
</cfscript>
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