Find a value within array of structures

Question

this might have been asked before, but didn't quite find... or what I found was old.

I have an array of structures like so:

Isn't there a CFML function that will allow me to check if "[email protected]" already exists under any of the structures "toAddress" ? I can obviously loop my array, check and break if found, but wondering if something already exists for this ?

Thank you. Pat

Scott Stroz · Accepted Answer · 2020-12-31 13:50:25Z

5

You can use arrayFind() with a callback function. Using your data structure above and assume the array is named myArray

if( 
    !arrayFind( myArray, function( item ){
        return item.toAddress == '[email protected]'
    })
){
    // do stuff if address is not used.
}

answered Dec 31, 2020 at 13:50

Scott Stroz

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4 Comments

Pat Over a year ago

Works! Thanks. One question though: this means however that it'll still loop through all the array element even if it found a match, correct ? If so, is there any way I could tell the arrayFind() to break if function returned true ?

Scott Stroz Over a year ago

arrayFind() returns the first index that matches the logic you provide in the callback. I am not sure of the internal logic, but it seems it would break after the first element found. A way to test this would be to add a writeDump() to dump the email in the callback to see if it outputs all of them.

Shawn Over a year ago

For future readers: arrayFind() will stop looking once it finds the 1st instance. It's a fairly efficient function for doing this. trycf.com/gist/af2e5fe9253fab408c6c21cfa490a6ae/…

Pat Over a year ago

Awesome! Thanks for your time and help :)

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