PapaParse | powerful CSV ( delimited text | CSV Processing library

 by   mholt JavaScript Version: 5.4.1 License: MIT

kandi X-RAY | PapaParse Summary

kandi X-RAY | PapaParse Summary

PapaParse is a JavaScript library typically used in Utilities, CSV Processing applications. PapaParse has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can install using 'npm i @ponomarevlad/papaparse' or download it from GitHub, npm.

Parse CSV with JavaScript.

            kandi-support Support

              PapaParse has a medium active ecosystem.
              It has 11400 star(s) with 1132 fork(s). There are 154 watchers for this library.
              There were 2 major release(s) in the last 12 months.
              There are 153 open issues and 582 have been closed. On average issues are closed in 100 days. There are 15 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of PapaParse is 5.4.1

            kandi-Quality Quality

              PapaParse has 0 bugs and 0 code smells.

            kandi-Security Security

              PapaParse has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              PapaParse code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              PapaParse is licensed under the MIT License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              PapaParse releases are available to install and integrate.
              Deployable package is available in npm.
              Installation instructions are not available. Examples and code snippets are available.
              PapaParse saves you 1897 person hours of effort in developing the same functionality from scratch.
              It has 4182 lines of code, 0 functions and 23 files.
              It has low code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi has reviewed PapaParse and discovered the below as its top functions. This is intended to give you an instant insight into PapaParse implemented functionality, and help decide if they suit your requirements.
            • The parsing function
            • Initialize a new Parser with the given config .
            • Convert JSON to JSON
            • Creates a new Chunk stream .
            • Channel stream implementation .
            • Creates a DuplexStream stream that splits data chunks of data stream .
            • ReadableStream for chunking .
            • Create a FileStream instance .
            • POST to JSON
            • Serialize data .
            Get all kandi verified functions for this library.

            PapaParse Key Features

            No Key Features are available at this moment for PapaParse.

            PapaParse Examples and Code Snippets

            Attribute Assingment/Analysis on Leaflet Map
            JavaScriptdot img1Lines of Code : 32dot img1License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            var fg = L.featureGroup().addTo(Karte);
            //Papaparse Erweiterung für CSV Tabelle
            $.get('./turf.csv', function(csvString) {
                        // Use PapaParse to convert string to array of objects
                        var data = Papa.parse(csvString, {
            In React, how to get state into the UI, and then map through the array object
            JavaScriptdot img2Lines of Code : 60dot img2License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            import React, { Component } from 'react'
            import Papa from 'papaparse'
            class Product extends Component {
                constructor(props) {
                    this.state = {data: [] };   
                    this.handleChange = this.handleChange.bind
            Reactjs → static methods without access to "this", what's the alternative?
            Lines of Code : 26dot img3License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            class PapaParse extends Component {
              Parse(cvs_string) {
                Papa.parse(cvs_string, {
                  header: true,
                  skipEmptyLines: true,
                  complete: (results) => {
            Angular - See variable change in parent component
            JavaScriptdot img4Lines of Code : 33dot img4License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
              onChange(files: FileList, index: number, dom: any) {
                var that = this; // outer context
                // Option to parse the file with papaparse
                let options = {
                  header: true,
                  error: (err, file) => {
            validate CSV files in Grunt build
            Lines of Code : 232dot img5License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            module.exports = function(grunt) {
                // Requirements
                var fs = require('fs');
                var Papa = require('papaparse');
                // Other project configuration tasks.
                    // ...
                 * Register a cu

            Community Discussions


            Firebase / React - Prevent Host Header attack
            Asked 2022-Mar-15 at 02:37

            I am working to remedy some security vulnerabilities from a penetration test. The vulnerability in question is a "Web Server Vulnerable to HTTP Host Header Attack" with a recommendation of "...the Host request header is user specified and shouldn't be trusted. Ensure that strict white listing is used to validate the Host header."

            I am currently using React.js as my frontend frame work and Firebase for Functions (Node.js), Hosting, Authentication, Storage and Analytics. I am not understanding from my general internet search where or even what I should be changing to remedy this vulnerability? I am gathering that I may be using code in my server calls that is using the raw "HOST" variable, but I don't see anywhere in my code this is accessed explicitly. I do have an functions.https.onCall() function, which is maybe using the HOST internally. Obviously have many onCreate(), onUpdate(), etc calls. Maybe it is another function or library I am using behind the scenes?

            What is the solution to prevent host header attacks on Firebase?

            Firebase Functions package.json:



            Answered 2022-Mar-15 at 02:37

            If you are using Firebase Hosting, the report it likely referring to the fact that the Host header is used to route requests to the appropriate site. This is working as intended -- since Firebase Hosting is a multi-tenant service, the Host header provides necessary information to disambiguate between sites.

            No action should be necessary on your part - Firebase already carefully validates the header against known sites.



            Window is not defined in node.js, sigma.js and typescript environment
            Asked 2022-Jan-21 at 14:57

            I try to setup a sigma.js project with node.js written in TypeScript. The following reference error occurs after starting the node.js server with:



            Answered 2022-Jan-21 at 14:57

            Well, no, it isn't.

            Express.js is a server-side framework for generating responses to HTTP requests. It runs on Node.js. It doesn't have a window.

            Sigma is a graphing library designed to be run by a web browser when it is embedded in a webpage (via a



            NG_PERSISTENT_BUILD_CACHE=1 ng serve not working
            Asked 2022-Jan-20 at 18:32

            I am trying to use the persistent build cache feature provided by angular but look like its not working for me, I am trying the below command



            Answered 2022-Jan-20 at 18:32

            You seem to be using Windows cmd to run the command, and hence you are getting the error.

            The command:



            Parsing CSV data client or server is faster
            Asked 2021-Dec-08 at 09:13

            I want to import data from a CSV file to spring controller, as far as I know, there are 2 ways:

            • parsing the data on the client side with a library like papaparse.v.v then sending it to the controller
            • uploading the file and then parsing it on the server side which is the best way in the above two ways, thanks a lot


            Answered 2021-Dec-08 at 03:45

            Each way also have pros and cons.

            If you have only few user/client then parsing at server maybe more suitable.

            Otherwise, parsing at clients should be consider because it reduce the workload at server. It should be consider with priority if your application have thousand or million request each day.



            Accurately Incrementing and Assigning Order Numbers (eCommerce) with React.js & Firebse
            Asked 2021-Dec-04 at 05:43

            I have been building a simple online store using React.js (framework) and Firebase (Hosting, Firestore, Functions, and Distributed Counter extension). I am struggling with the simple ecommerce feature to increment and assign a unique order # to each new order placed. I thought I fixed an issue where if 2+ orders are placed too quickly in succession, the backend will read the current order # then set the new order # for this order, but since two orders were placed so close together, the order # given to each order is the same. The distributed counter seems to still be working, as it is always summing the 'placed' counter properly. I found recently that this issue still existed when I quickly placed two orders in two web browser windows on my local machine.

            Has anyone successfully used the Firebase Distributed Counter extension to increment then assign order numbers to orders? My setup is a bit different that the example they use which is for "visits" to "pages", mainly just on "placed" counter not being on every "order" just on my "stats" order doc.

            Is it impossible to remove that slight delay of reading? I feel there has to be a work around! I was thinking maybe incrementing each order by 10 instead and adding a random number between 0-10 to that, so if there were duplicates, its a low chance they both get randomized to the same sub number (i.e. order #44 and order #48), but this feels like a janky fix, as there is still a chance they are the same.

            Related: I am currently getting this error with the Counter Extension on the backend and am working with GCP on fixing, but my guess is it's an issue with their end:

            distributed_counter.js: Node.js Admin Firebase sample I used




            Answered 2021-Nov-10 at 09:37

            The main problem with counters is the limit mentioned here:

            In Cloud Firestore, you can only update a single document about once per second, which might be too low for some high-traffic applications.

            also here:

            You should not update a single document more than once per second. If you update a document too quickly, then your application will experience contention, including higher latency, timeouts, and other errors.

            For best practices, please see Cloud Functions best practices.

            On this documentation, it explains how you can workaround this limitation using distributed counters. Here's an example:



            Updating Formik initialValues via array push does not refresh initial values/form via csv file upload
            Asked 2021-Nov-24 at 01:11

            I have the following Formik initial values setup:



            Answered 2021-Nov-24 at 01:09

            I managed to solve my issue by using Formik's setFieldValue prior to pushing the data into my initial values.



            Link State Typescript Error: "state: { id: any; name: any; }; }' is not assignable to type "
            Asked 2021-Nov-08 at 22:06

            I'm trying to pass state through a , which I have been able to do in the past without typescript. However typescript is throwing an error I'm not sure how to fix...

            This is my packages I'm using...



            Answered 2021-Nov-08 at 22:06

            Based on the docs, it looks like you have to pass Link a to object containing all the information:



            Uncaught TypeError: root is undefined papaparse
            Asked 2021-Oct-07 at 07:33

            I have a problem with papaparse in my code, I try to parse a string but is giving me this error:

            Uncaught TypeError: root is undefined"

            the code is like:



            Answered 2021-Oct-07 at 07:33

            The problem was that papaparse didn't like the import as. I have added the URL into the script in the HTML page connected to the JS page and now works fine.



            Papa Parse and Leaflet integration for icons
            Asked 2021-Oct-06 at 15:10

            I'm trying to use PapaParse to pull from a Google Sheets CSV which has lat/lon and some options for setting markers with different icons in Leaflet. Everything appears to be working fine. The markers get set correct with the correct color from the CSV. The problem is that the icons aren't loading, even though the console log shows them as parsing correctly.

            Here's the spreadsheet:

            Here's the full javascript:



            Answered 2021-Oct-06 at 15:10

            Remove " from the icon string in the Sheet. "bicycle" to bicycle

            Maybe else it has blanks and you need to trim the icon string



            Export JSON as CSV with Papa Parse
            Asked 2021-Sep-22 at 12:33

            I have an Ionic React app and want to download data as CSV. Therefore I added react-papaparse, but I am unable to download the data with the app. As soon as I try it in the browser, it works fine.

            In the end, I want to be able to fetch data stored on the phone, convert it from JSON to CSV, and then download it to the phone. I tried it as well with my fetch data as with a dummy array. Neither worked.

            But when I click the button inside the browser, I am able to save the generated CSV file. Therefore I think my basic code is working, I am just missing a piece to make it work on the phone/emulator (android studio).



            Answered 2021-Sep-21 at 15:05

            Make a test page that eliminates everything except the code you want to focus on. That way you can concentrate on implementing file download.

            For example:


            Community Discussions, Code Snippets contain sources that include Stack Exchange Network


            No vulnerabilities reported

            Install PapaParse

            You can install using 'npm i @ponomarevlad/papaparse' or download it from GitHub, npm.


            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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            npm i papaparse

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            gh repo clone mholt/PapaParse

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