JSON Numbers in JSON
From the JSON cheat sheet · Numbers and Literals · verified Aug 2026
JSON Numbers
Represent integers, fractions, and exponents.
json
[0,-12,3.14,6.02e23,-2E-3]📌 Leading zeros are not allowed except for zero
⚠️ Infinity and NaN are invalid JSON
🔍 Number precision depends on the parser
🎯 Send large identifiers as strings when precision matters
numbersprecisionexponents
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