JSON Essentials

JSON 1.8
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JSON is a data format used mainly on the Web to transmit information between client and server applications. Let's take a closer look at JSON, including its data types, and how to work with it.

WHAT YOU WILL LEARN

  • describe the pros and cons of using JSON
    compare and contrast JSON and JavaScript
    create a JSON object with all of its supported data types
    validate a JSON object
    debug common JSON formatting errors
    understand why it is unsafe to use the eval function with JSON
    create JSON objects with arrays and arrays-of-arrays
    use JSON to make AJAX requests
  • embed a JSONP JavaScript file in a web page
    use JSON Schema to validate data
    use the jQuery.getJSON function to retrieve JSON and JSONP data from a server
    use JSON to represent tabular data
    implement CORS in node.js service and make a request from the browser
    create a JSON object that embeds escaped HTML text
    create and query JSON data in a Postgresql database using the JSON data type

IN THIS COURSE

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