ArrayMin

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อัปเดตครั้งล่าสุดเมื่อ 21 ธ.ค. 2021 | และยังใช้กับ ColdFusion

ColdFusion

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Description

Array minimum function.

Returns

The smallest numeric value in an array. If the array parameter value is an empty array, returns zero.

syntax

arrayMin(array [, parallel] [, maxThreadCount])

Parameters

Parameter	Description
array	Name of an array
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>
       myArray=[23,76,1,-43,9,112]
       minVal=ArrayMin(myArray)
       WriteOutput(minVal)// Returns -43
</cfscript>

Using parallelization

<cfscript> 
 for(i=1;i<=1001;i++){ 
  arr[i] = i*2; 
  if(i == 554) 
   arr[i]= -2147483648  
 } 
 //writedump(arr) 
 //writeoutput(arr.min()) 
  
 t_start=GetTickCount() 
writeoutput(arraymin(arr,true,5))  
 t_end=GetTickCount() 
 writeoutput("<br>Time taken with 5 threads:" &  t_end-t_start) 
  
  
 t_start=GetTickCount() 
writeoutput(arr.min(true,10)) 
 t_end=GetTickCount() 
 writeoutput("<br>Time taken with 10 threads:" &  t_end-t_start) 
  
 t_start=GetTickCount() 
writeoutput(arraymin(array=arr,parallel=true,maxthreadcount=20)) 
 t_end=GetTickCount() 
 writeoutput("<br>Time taken with 20 threads:" &  t_end-t_start) 
  
 t_start=GetTickCount() 
writeoutput(arr.min()) 
 t_end=GetTickCount() 
 writeoutput("<br>Time taken with no parallel:" &  t_end-t_start) 
  
</cfscript>