Installation:

``bash
$ npm install hacktiv8-restriction
`

Usage:

index.js

`js
function myFunction() {
let arrayOfNumbers = [1, 2, 3, 4, 5]
return arrayOfNumbers.map(el => el * 2) // line number 3
}
`

checkRestriction.js

`js
const Restriction = require('hacktiv8-restriction')
// checking index.js script for restriction rules
// init
const checkRestriction = new Restriction('index.js')

// promise
checkRestriction.readCode().then(result => console.log(result)) // arrayOfNumbers.map(el => el * 2) : 3

// async / await
async function checkStudentRestriction() {
const result = await checkRestriction.readCode()
return result // arrayOfNumbers.map(el => el * 2) : 3
}
`

js/index.js

`js
function myFunction() {
let arrayOfNumbers = [1, 2, 3, 4, 5]
return arrayOfNumbers.map(el => el * 2) // line number 3
}
`

src/checkRestriction.js

`js
const checkRestriction = new Restriction('../js/index.js')

checkRestriction.readCode().then(result => console.log(result)) // arrayOfNumbers.map(el => el * 2) : 3
`

It will return null (if it didn't found) or string (line of code and line number) value

This package will detect all of following function below (default):

`js
.map()
.reduce()
.filter()
.indexOf()
.toLocaleString()
.lastIndexOf()
.reverse()
.reduceRight()
.includes()
.flat()
.flatMap()
.find()
.findIndex()
.fill()
.every()
.copyWithin()
.entries()
.of()
new Set()

`

You can add new syntax to the restriction rules:

`js
checkRestriction.rules = ['concat', 'split', 'ceil', 'min'] // now package will check the concat and split syntax too

checkRestriction.readCode().then(result => console.log(result))
`

To remove your syntax from restriction rules:

`js
checkRestriction.popRules = ['map', 'filter'] // now package will check the concat and split syntax too

checkRestriction.readCode().then(result => console.log(result))
``