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Putting HTML in JSON – Four Things You Must DoThere are 4 things you must do if you want to include HTML content in a JSON data structure. These items were originally included in a recent post about using XSLT to include HTML in JSON. However, this information is good for anyone to remember when creating JSON data, regardless of whether XSLT is used or not. The JSON spec does not have many restrictions. JSON data is either a string, a number, a boolean, an object, an array, or null. As long as your data is formatted as one of these types, it should be valid. However, if your data contains HTML, there are certain things that you need to do to keep the browser happy when using your JSON data within Javascript.
Here is a fictional example of JSON data
that shows each of these suggestions. This was based on a real-world example where list items ( Like this post? Please share it! Then follow us on Twitter – @thorntech – and sign up for our email list below for future updates.
Get insights on SFTP Gateway, cloud computing and more, in your inbox.Get smarter about all things tech. Sign up now! Discover SFTP GatewayLearn more about SFTP GatewaySearch our blogRecent posts August 18, 2022 No Comments August 3, 2022 No Comments This article is going to assume that you’re trying to insert HTML directly inside the JSON file. The problem with HTML inside JSON is that HTML elements have properties that must use double quotes. But as soon as you insert double quotes it’s going to cause syntax error because JSON can only do double quotes. If you’re interested why this breaks, here’s an article to explain why, “Types – String“. Okay solution: Using HTML entitiesYou can use HTML entities to escape that syntax error. But it sometimes causes weird HTML side-effects. Like adding double quotes around the double quotes. Or making link elements not work. Best solution: Escape stringsThe best solution to implement HTML with properties is to escape strings. Just add the backslash
( I like to tweet about JSON and post helpful code snippets. Follow me there if you would like some too! What characters are not allowed in JSON?The following characters are reserved characters and can not be used in JSON and must be properly escaped to be used in strings.. Backspace to be replaced with \b.. Form feed to be replaced with \f.. Newline to be replaced with \n.. Carriage return to be replaced with \r.. Tab to be replaced with \t.. How escape HTML tag JSON?However, if your data contains HTML, there are certain things that you need to do to keep the browser happy when using your JSON data within Javascript. Escape the forward slash in HTML end tags. <div>Hello World!
How do I pass a json file in HTML?Two options to consider if you are in this position are: encoding/decoding the markup first with something like [base64_encode][1] / decode (quite a bit of a performance hit), or (and perhaps preferably) be more selective in what you are passing via json, and generate the necessary markup on the client side instead.
How do I display data in JSON table in HTML?Approach 1:. Take the JSON Object in a variable.. Call a function which first adds the column names to the < table > element. (It is looking for the all columns, which is UNION of the column names).. Traverse the JSON data and match key with the column name. ... . Leave the column empty if there is no value of that key.. |