Web Developer

 flowchart maker: Untitled Diagram - draw.io (diagrams.net) You can use online tools such as JSONLint or text editors like Visual Studio Code to validate the JSON syntax. https://jsonlint.com/ https://medium.com/@sukronalifti/make-simple-create-read-update-and-delete-using-react-js-e85801a755b7 

  1:node js:[stream] https://nodesource.com/blog/understanding-streams-in-nodejs/ 1:redux:-- https://medium.com/@ertemishakk/redux-thunk-vs-redux-saga-b057ed1a72a3 https://dev.to/thisisgazzar/rtk-query-vs-redux-saga-what-to-choose-for-your-next-project-4j5g

 https://www.webslesson.info/2017/10/add-remove-select-box-fields-dynamically-using-jquery-ajax-in-php.html

node js how process:-- threadpool: node vs express: Diff b/w client side vs server side  

1:freeze only one property of object  let data={     name:'raj',     address:'krishna' } Object.defineProperty(data, "address", { configurable: false, writable: false }); data.address='rama' console.log(data.address) 2:freeze whole object:-- let data={     name:'raj',     address:'krishna' } Object.freeze(data)