ArrayEvery

ArrayEvery

Išči

某些 Creative Cloud 应用程序、服务和功能在中国不可用。

Description

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

Returns

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

Syntax

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ArrayEvery(array, callback)

Member function

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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

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

Example 2

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

Example 3

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<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

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<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

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<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

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