Parameter
Последнее обновление
21 мая 2021 г.
Description
Determines if all values of a struct satisfy a given condition.
Returns
True if all values match a condition; false, otherwise.
Syntax
StructEvery(struct,callback)
Member function
structObj.Every(callback)
History
New in ColdFusion (2018 release) Update 5: Added this function.
Parameters
|
Required/Optional |
Description |
---|---|---|
struct |
Required |
Struct in which all values are to be searched. |
callback |
Required |
Function that encapsulates the criteria. |
Example
Example 1
<cfscript> mystruct = {a=1,b=2,c=3}; doesValExist=(key,value,struct)=>return value!=1 writeoutput(structEvery(mystruct,doesValExist)) // Returns False </cfscript>
Output
NO
Example 2
<cfscript> structEven={a=2,b=4,c=8,d=10,e=12} isEven=(key,value)=>return value%2==0 writeOutput(StructEvery(structEven,isEven)) // Returns True </cfscript>
Output
YES
Member function
<cfscript> structEven={a=2,b=4,c=8,d=10,e=12} isEven=(key,value)=>return value%2==0 writeOutput(structEven.Every(isEven)) // Returns True </cfscript>
Example 3 - Named parameters
<cfscript> mystruct={"key1":"aval","key2":"aval1","key3":"aval2"} result=StructEvery(struct=mystruct,callback=function(key,val){ if (val.startswith("a")) return 1 else return 0 } ) writeOutput(result) </cfscript>
Output
YES
Arrow function
<cfscript> ordstruct=["key1":"abc","key2":"def","key3":"sss"] lambdaFunc= key => key.contains("key") writeoutput(ordstruct.Every(lambdaFunc)) </cfscript>
Output
YES