How to use variable slots in a string in node.js?


How to use variable slots in a string in node.js?



I am working in Google Assistant's Action SDK and in my code I want a {location} slot. I have tried this:-




gapp.intent('actions.intent.TEXT', (conv, input) => {
let rawInput = input.toLowerCase();
console.log('USER SAID ' + rawInput);
if(rawInput == `i am in ${loc}`)
{
console.log("User is in " + loc);
conv.ask("Okay so you are in" + loc);
}
}



However if i say "I am in mumbai" in the simulator it doesn't enter this 'if' statement. How can I use the "loc" variable in the user input?





What loc variable? It's not declared or set to a value anywhere in the code you posted. edit oh wait; that's simply not how string templates work. They're for creating strings, not pattern matching.
– Pointy
Jun 30 at 13:29



loc





For simplicity I have declared 'loc' variable global.
– ABHILASHA
Jun 30 at 13:45






What's loc declared as? .. Mumbai or mumbai ? ... note that JS is case sensitive, so "I am in mumbai" won't match "I am in Mumbai". If that's the case, use e.g. .toLowerCase() on both rawInput and i am in ${loc}
– LGSon
Jun 30 at 13:50



loc


Mumbai


mumbai


"I am in mumbai"


"I am in Mumbai"


.toLowerCase()


rawInput


i am in ${loc}





@LGSon it doesn't matter because that is not what string templates do. There's no "matching" at all. Matching is done by regular expressions. String templates are for building string values.
– Pointy
Jun 30 at 13:52






@Pointy Won't rawInput.toLowerCase() == `i am in ${loc}`.toLowerCase() match if they both say i am in mumbai though with different letter casing?
– LGSon
Jun 30 at 13:55



rawInput.toLowerCase() == `i am in ${loc}`.toLowerCase()


i am in mumbai




1 Answer
1



You can use a String.prototype.match() match like so:


String.prototype.match()


let found = rawInput.match(/I am in (.*)/)
if (found) {
let location = found[1];
console.log("User is in " + loc);
}





Yes this works! Thank you!
– ABHILASHA
2 days ago






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