Detecting if the object is hit by LineRenderer

Here's script that creates the line and adds collider to it

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class MyLineDraw : MonoBehaviour
 {
    public GameObject linePrefab;
    public GameObject currentLine;
    public LineRenderer lineRenderer;
    public EdgeCollider2D edgeCollider;
    public List<Vector2> fingerPositions;
    private void Update() {
        if(Input.GetMouseButtonDown(0))
        {
            CreateLine();
        }
        if(Input.GetMouseButton(0))
        {
            Vector2 tempFingerpos = Camera.main.ScreenToWorldPoint(Input.mousePosition);
            if(Vector2.Distance(tempFingerpos, fingerPositions[fingerPositions.Count-1])>0)
            {
                UpdateLine(tempFingerpos);
            }
        }
    }
    
    void CreateLine()
    {
        currentLine = Instantiate(linePrefab, Vector3.zero, Quaternion.identity);
        lineRenderer = currentLine.GetComponent<LineRenderer>();
        edgeCollider = currentLine.GetComponent<EdgeCollider2D>();
        fingerPositions.Clear();
        fingerPositions.Add(Camera.main.ScreenToWorldPoint(Input.mousePosition));
        fingerPositions.Add(Camera.main.ScreenToWorldPoint(Input.mousePosition));
        lineRenderer.SetPosition(0, fingerPositions[0]);
        lineRenderer.SetPosition(1, fingerPositions[1]);
        edgeCollider.points = fingerPositions.ToArray();
        
 
    }
 
    void UpdateLine(Vector2 newFingerPos)
    {
        fingerPositions.Add(newFingerPos);
        lineRenderer.positionCount++;
        lineRenderer.SetPosition(lineRenderer.positionCount-1, newFingerPos);
        edgeCollider.points = fingerPositions.ToArray();
        
    }
 
 }

For more info check this : https://www.youtube.com/watch?v=pa_U64G7gkE Note: This is to draw line on swiping the screen, modify it as per your requirement