Best practice to check for booleans?

[peterraeves]

I picked up the habit of checking for <variable> == 'true', when checking for variables. Though this got me into trouble once, because someone entered the value 'True', resulting in a false negative. Should I check for <variable> == true instead? Or what is the best practice in ServiceNow for checking for boolean values?

[Chris M3]

JSUtil.toBoolean(value) will evaluate the value for a few different conditions.   You can take a look at the JSUtil script include in your instance to see exactly what the code does.

However, you should be using a check box, or choice box for boolean values, so that is not dependent on the user typing in a value.

[peterraeves]

The values come in through the web service and there we cannot use anything other than strings

[Alikutty A]

I believe this should fall into java script best practices

For boolean values you can directly validate the variable in if condition

var check = true;

if(check){

// execute true conditions

}

if(!check){

// execute false conditions

}

Thanks

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