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JSON Data Architecture Tutorial• 6 min read
Syntax Rules & Supported Data Types
Master the 6 valid JSON data types, quote rules, and why trailing commas cause parse crashes.
The 6 Valid JSON Data Types
1String (MUST use double quotes
"key").2Number (Integer or float, no NaN or Infinity).
3Boolean (
true or false).4Null (
null).5Array (
[...]).6Object (
{...}).Functions, Dates, and undefined are NOT permitted in valid JSON!
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Test Yourself With Exercise
Which of the following data types is strictly prohibited in valid standard JSON?