When to use const or var or let and lambda expresion internals

groups= ;

getGroup(id){
const s = groups.find(t => t.id === id);
return s;
}

getGroup(id){
var s = groups.find(t => t.id === id);
return s;
}


getGroup(id){
let s = groups.find(t => t.id === id);
return s;
}


s

var

let

group

forEach

Read about var, let and const in JavaScript.
– axiac
1 min ago

var

let

const

You should refer MDN declarations
– Narendra Jadhav
34 secs ago

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