ArraySome

Rechercher

Dernière mise à jour le 1 mai 2021

Description

Determines if at least one element in the array satisfies a given condition.

Returns

True if at least one element matches a condition; false, otherwise.

Syntax

arraySome(array, function(item [,index, array]){} [, parallel] [, maxThreadCount])

Member function

arrayObj.Some(callback)

History

ColdFusion (2021 release): Introduced the following parameters:

parallel
maxThreadCount

ColdFusion (2018 release) Update 5: Added the function.

Parameters

Parameter	Required/Optional	Description
array	Required	Array in which at least one element is to be searched.
callback	Required	Function to encapsulate the criteria.
parallel	Optional	True if you want to enable parallel programming.
maxThreadCount	Optional	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

Example 1

<cfscript>
 array1=[1,2,3,4,5]
 isEven=(x)=>return x%2==0
 writeOutput(arraySome(array1,isEven)) // Returns TRUE
</cfscript>

Example 2

<cfscript>
 myarray=[2,4,6,8,10,12,14]
 isGT10=(element,index,array)=>return element>10
 writeoutput(arraySome(myarray,isGT10)) // Returns True
 // Using member function
 writeoutput(myarray.Some(isGT10)) // Returns True
</cfscript>

Example 3 - Using named parameters

<cfscript> 
 myarray=[2,5,8,1,4] 
 callback=function(element,index,array){ 
  return element>10 
 } 
 result=ArraySome(array=myarray,callback=callback) 
 writeOutput(result) // Returns False 
</cfscript>

Example 4 - Using arrow function

<cfscript> 
 myarray=[2,5,8,1,4] 
 callback=(element,index,array)=>{ 
  return element<10 
 } 
 result=ArraySome(array=myarray,callback=callback) 
 writeOutput(result) // Returns True 
</cfscript>

Member function

<cfscript> 
 array1=[1,2,3,4,5] 
 isEven=(x)=>return x%2==0 
 writeOutput(array1.Some(isEven)) 
</cfscript>

Using parallelization

<cfscript> 
  for(i=1;i<=10000;i++){ 
     
  if(i == 4500){ 
    arr[i]=0; 
  } 
  else 
    arr[i]=i*2; 
} 
 
  result = arr.some(function(item){ 
 
  if (item Mod 2 == 0) 
    return false 
return true 
 
},true,20) 
 
writeoutput(result) 
 
</cfscript>

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