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format: stop relying on array properties #131

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@kyrofa kyrofa commented Jan 21, 2022

There are numerous libraries out there (sugarjs, prototypejs) that extend the Array prototype. The simplify function in js-quantities relies on setting/checking properties on an array instance, which means that it's incompatible with such libraries. This PR fixes #130, adding compatibility by using a separate object for keeping track of the counters instead of using properties on array instances.

Note: It was unclear whether I should be including changes to generated files. Please let me know if I should only be changing the src/spec files and I can update this PR.

There are numerous libraries out there (sugarjs, prototypejs) that
extend the `Array` prototype. The `simplify` function in js-quantities
relies on setting/checking properties on an array instance, which means
that it's incompatible with such libraries. Add compatibility by using a
separate object for keeping track of the counters instead of using
properties on array instances.

Fix gentooboontoo#130.

Signed-off-by: Kyle Fazzari <kyrofa@ubuntu.com>
@@ -454,7 +454,9 @@ var UNITS = {
"<dozen>" : [["doz","dz","dozen"],12.0,"prefix_only", ["<each>"]],
"<percent>": [["%","percent"], 0.01, "prefix_only", ["<1>"]],
"<ppm>" : [["ppm"],1e-6, "prefix_only", ["<1>"]],
"<ppt>" : [["ppt"],1e-9, "prefix_only", ["<1>"]],
"<ppb>" : [["ppb"],1e-9, "prefix_only", ["<1>"]],
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These (beyond million) only make sense in the places like the US where 1 billion == 1 thousand million, not in places like the UK where 1 billion == 1 million million.

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@kyrofa kyrofa Mar 18, 2022

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Please ignore the generated files. I did not write this code, but they weren't .gitignored so I felt like I should include them. If you think there are issues here, you might consider logging one since these things were already here.

@@ -454,7 +454,9 @@ var UNITS = {
"<dozen>" : [["doz","dz","dozen"],12.0,"prefix_only", ["<each>"]],
"<percent>": [["%","percent"], 0.01, "prefix_only", ["<1>"]],
"<ppm>" : [["ppm"],1e-6, "prefix_only", ["<1>"]],
"<ppt>" : [["ppt"],1e-9, "prefix_only", ["<1>"]],
"<ppb>" : [["ppb"],1e-9, "prefix_only", ["<1>"]],
"<ppt>" : [["ppt"],1e-12, "prefix_only", ["<1>"]],
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Another ambiguous term: parts per trillion or parts per thousand? (and if trillion: US trillion or UK trillion)

"<ppt>" : [["ppt"],1e-9, "prefix_only", ["<1>"]],
"<ppb>" : [["ppb"],1e-9, "prefix_only", ["<1>"]],
"<ppt>" : [["ppt"],1e-12, "prefix_only", ["<1>"]],
"<ppq>" : [["ppq"],1e-15, "prefix_only", ["<1>"]],
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quad? quint?

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js-quantities is incompatible with sugarjs and prototypejs
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