Export CSV feature Enhancement

sridharan-dlt commented 3 years ago

Added download image to the chart element in SVG format (line/bar graphs).
Once image is clicked, exportCSV(ele) is executed. A simple function gets chart data from memory using an existing function in monkshu components and calls utils.exportCSV().
Created a file utils.mjs in chart-box/lib - to maintain common utility functions.
exportCSV() in utils, simply takes contents and filename as parameters, then process the data from JSON to CSV format and - download it within the function itself.
Papaparse library added to parse data with commas and newline character(delimiters).
Added blob to the link element and removed it at the end of the function call.

PS. Changes have been modified as per the comment in PR #34. Also synced with the latest commit.

sridharan-dlt commented 3 years ago

@TekMonksGitHub sir, could you please review this PR.

TekMonksGitHub commented 3 years ago

We must name variables so that code can be "read" like a book.

exportImage makes not much sense. Please revise to something readable eg exportCSVIcon or something.

sridharan-dlt commented 3 years ago

Understood sir, will make a change.

TekMonksGitHub / monkvision