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9 lines
878 B
Markdown
9 lines
878 B
Markdown
XRP Ledger APIs generally use strings, rather than native JSON numbers, to represent numeric amounts of currency for both [XRP](../introduction/what-is-xrp.md) and [tokens](../concepts/tokens/index.md). This protects against a loss of precision when using JSON parsers, which may automatically try to represent all JSON numbers in a floating-point format. Within the String value, the numbers are serialized in the same way as native JSON numbers:
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* Base-10.
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* Non-zero-prefaced.
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* May contain `.` as a decimal point. For example, ½ is represented as `0.5`. (American style, not European)
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* Negative amounts start with the character `-`.
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* May contain `E` or `e` to indicate being raised to a power of 10 (scientific notation). For example, `1.2E5` is equivalent to 1.2×10<sup>5</sup>, or `120000`. Negative exponents are also possible.
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* No comma (`,`) characters are used.
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