[Webkit-unassigned] [Bug 170442] New: Safari 10.1 JSON.parse returns incorrect object for numeric keys with decimal values
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Tue Apr 4 01:49:25 PDT 2017
https://bugs.webkit.org/show_bug.cgi?id=170442
Bug ID: 170442
Summary: Safari 10.1 JSON.parse returns incorrect object for
numeric keys with decimal values
Product: WebKit
Version: Safari 10
Hardware: Macintosh
OS: macOS 10.12
Status: NEW
Severity: Normal
Priority: P2
Component: JavaScriptCore
Assignee: webkit-unassigned at lists.webkit.org
Reporter: martin at cropster.com
Additional invalid key/value pairs are added if the object contains numeric keys with a decimal number for the first two keys whose 1st decimal place isn't 0.
JSON.parse('{"0":97.1,"1000":96.5,"2000":96.1,"3000":97.4,"4000":90.4}')
> {0: 97.1, 1: NaN, 2: NaN, 1000: 96.5, 2000: 96.1, 3000: 97.4, 4000: 90.4}
If these are parseable to integers, this doesn't happen.
JSON.parse('{"0":97.0,"1000":96.0,"2000":96.1,"3000":97.4,"4000":90.4}')
> {0: 97, 1000: 96, 2000: 96.1, 3000: 97.4, 4000: 90.4}
Nor does the problem occur if we replace the numeric values with strings.
JSON.parse('{"0":"97.1","1000":"96.5","2000":"96.1","3000":"97.4","4000":"90.4"}')
> {0: "97.1", 1000: "96.5", 2000: "96.1", 3000: "97.4", 4000: "90.4"}
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