CODEWITHSUNDEEP
node.jsvariablesconstantsvariable-declaration
user11340571
user11340571

Reputation:

Should I use const on a variable with different assignments in different function calls but that is not reassigned in the same call

Let's say I have a variable which gets a request from a database, the request is going to be different every time the function is being called, but within one run of the function, that variable is not going to reassigned. Should I use LET or CONST please? It's quite confusing

async setSetting(guildID, settingName, value) {
  let settingToFind = { guildID: guildID, setting: settingName };
  /* Some code but settingToFind is not reassigned within the function... */
}

Here is an other example of where I'm not sure if I should use let or const (for settingToFind)

Upvotes: 2

Views: 191

Answers (2)

Philipp Dahse
Philipp Dahse

Reputation: 748

You should use const! This will remind other devs or your self in the future to not reassign this var or at least to think about it. If you want to allow to change it later on you could use let, but it's common to put as strict as possible in first palce.

Upvotes: 1

Ben Wainwright
Ben Wainwright

Reputation: 4651

You've answered your own question:

but within one run of the function, that variable is not going to reassigned

You should use const

Upvotes: 1

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