D3.js is a very popular graph library to help developers draw various kind of charts using JavaScript in a webpage. It utilizes the SVG format supported by all major modern browsers and can help developers get rid of the old age of Flash or server side graph drawing libraries.In this post, we will introduce some simple examples of drawing bar chart with labels using D3.js. First, let's see what will be the final look of the graph drawn.Below is the complete source code for this example.let data = { "FACEBOOK": 30, "GITHUB" : 44, "GOOGLE" : 64, "TWITTER" : 17, "WEIBO" : ...

JSON has been used in lots of places to exchange data among different services/systems. Nowadays all mainstream programming languages have built-in library support of JSON data parse and stringify. In this post, let's talk about JSON.stringify() in JavaScript.Let's first take a small example of Object conversion handling. There is a requirement to convert below objectconst todayILearn = { _id: 1, content: '今天学习 JSON.stringify()，我很开心！', created_at: 'Mon Nov 25 2019 14:03:55 GMT+0800 (中国标准时间)', updated_at...