app.enable() Function

app.enable() turns a boolean application setting on, shorthand for app.set(name, true).

Syntax

app.enable(name)

Example

const express = require("express");
const app = express();

app.enable("trust proxy");
console.log(app.get("trust proxy")); // true

app.enable("strict routing");
console.log(app.enabled("strict routing")); // true

Use cases

• Enabling trust proxy behind a load balancer or reverse proxy.
• Turning on strict or case-sensitive routing.
• Quickly toggling boolean Express settings without writing app.set(name, true).