ArrayEvery

ArrayEvery

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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>