ArrayEvery

Description

Determines if all elements of an array satisfy a given condition.

Returns

True if all elements match a condition; false, otherwise.

Syntax

ArrayEvery(array, callback)

Member function

arrayObj.Every(callback)

History

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

Parameters

Parameter

Required/Optional

Description

array

Required

Array in which all elements are to be searched.

callback

Required

Function that encapsulates criteria .

Example

Example 1

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

Example 2

<cfscript>
 arrayAllEven=[2,4,6,8,10,12,14]
 isEven=(x)=>return x%2==0
 writeOutput(arrayEvery(arrayAllEven,isEven)) // Returns True
</cfscript>

Example 3

<cfscript>
 myarray=[2,4,6,8,10,12,14]
 isGT10=(element,index,array)=>return element>10
 writeoutput(arrayEvery(myarray,isGT10)) // Returns True
 writeoutput(myarray.Every(isGT10)) // Returns False
</cfscript>

Exampe 4 - Using named parameters

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

Example 5 - Using arrow function

<cfscript> 
 myarray=[2,5,8,1,4,12,29] 
 callback=(element,index,array)=>{ 
  return element>10 
 } 
 result=ArrayEvery(array=myarray,callback=callback) 
 writeOutput(result) // Returns False 
</cfscript>

Member function

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