CODEWITHSUNDEEP
coldfusion
jinglesthula
jinglesthula

Reputation: 4587

Test whether a value is a string in Coldfusion

I have a struct that I check for the existence of a key. I then need to test whether the value for that key is a string. I didn't spot anything in the Adobe CF docs like an isString() function (similar to isNumeric()).

Is there a good way other than using the seemingly broader isSimpleValue()?

Upvotes: 9

Views: 5130

Answers (2)

Binod Kalathil
Binod Kalathil

Reputation: 1969

Note that this works in CF 2018 only

if(getMetadata(<value>).getName() == 'java.lang.String') {
    //<value> is String
}

It will be a good idea to create an user defined function isString returning boolean based on above condition

Upvotes: 4

Alex Baban
Alex Baban

Reputation: 11732

The good way will depend on your context. ColdFusion does not use explicit types for variables.

'123456' can be a string and '2016-05-18 13:08:00' can be a string too, you have a good question but testing the value depends on what you're trying to do and what happens next with it.

Upvotes: 7

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