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ViewsExpressjs variable value is not updating
In below code snippet, I declare one variable named sumOfRevenue. I set its value as 10 in router and then try to print its value but I am getting it blank. So may I know why I got blank rather then 10?
Please check below code and attached screenshot.
const express = require('express')
var router = express.Router()
const client = require('../models/db')
/* I defined sumOfRevenue variable as below */
sumOfRevenue = ""
router.get('/getSites', async(req, res) => {
await client.query('select sum(revenue) from deals ', (error, results) => {
if (!error)
/* Here I just store static value as 10 to this variable */
sumOfRevenue =10
})
/* Here when I want to get that value but it gives blank */
console.log("sumOfRevenue is:" + sumOfRevenue);
});
module.exports = router
·
Santiago Gelvez
1 answers
Answer question0
- You need to add
varorletto declare your variable. - You need to be sure "!error" is equal to "true" (
console.log(!error))
·
Santiago Gelvez
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