Parameter
Cập nhật gần đây nhất vào
26 thg 12, 2022
|
Cũng áp dụng cho ColdFusion
Description
Array minimum function.
Returns
The smallest numeric value in an array. If the array parameter value is an empty array, returns zero.
Category
HISTORY
ColdFusion (2021 release): Introduced the following parameters:
- parallel
- maxThreadCount
syntax
arrayMin(array [, parallel] [, maxThreadCount]) |
Parameters
|
|
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>
