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Tag: json

Visualize a nested JSON structure

Consider this JSON object : Obviously this is a nested data structure, and there are many records, in this example in the deepest level we have about 2000 records. what is the best way to visualize this in a responsive and interactive manner. I have already used the table, and it doesn’t look that interactive. I am looking for ideas

Parse XLSX with Node and create json

Ok so I found this really well documented node_module called js-xlsx Question: How can I parse an xlsx to output json? Here is what the excel sheet looks like: In the end the json should look like this: index.js: Answer Improved Version of “Josh Marinacci” answer , it will read beyond Z column (i.e. AA1).

Can’t parse JSON to Javascript object

I have this HTML box: Event onchange() implementation: But when onchange() event is fired I get on this row: This error: SyntaxError: JSON.parse: unexpected character at line 1 column 2 of the JSON data return JSON.parse( data + “” ); Any idea why I get error above? Answer In your case you don’t need use parseJSON, because d is Object,

Fetch: POST JSON data

I’m trying to POST a JSON object using fetch. From what I can understand, I need to attach a stringified object to the body of the request, e.g.: When using jsfiddle’s JSON echo I’d expect to see the object I’ve sent ({a: 1, b: 2}) back, but this does not happen – chrome devtools doesn’t even show the JSON as

How do you JSON.stringify an ES6 Map?

I’d like to start using ES6 Map instead of JS objects but I’m being held back because I can’t figure out how to JSON.stringify() a Map. My keys are guaranteed to be strings and my values will always be listed. Do I really have to write a wrapper method to serialize? Answer Both JSON.stringify and JSON.parse support a second argument.

How to access first element of JSON object array?

I exptect that mandrill_events only contains one object. How do I access its event-property? Answer To answer your titular question, you use [0] to access the first element, but as it stands mandrill_events contains a string not an array, so mandrill_events[0] will just get you the first character, ‘[‘. So either correct your source to: and then req.mandrill_events[0], or if

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