Update math.js to include min, max, and clamp functions #339
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Include of simple math helpers for inline calculations. All support Number types of Int and Float, but not edge case numbers such as NaN, +-infinity, or undefined. Min: given `A` and `B` return the smaller of the two on a standard number line. Max: given `A` and `B` return the larger of the two on a standard number line. Clamp: given `test`, `min` and `max` return the tested value if it falls within the range of `min` and `max` such that `min < test < max` is satisfied on a standard number line. If the constraint is not satisfied, return the closest bounding constraint.
Amendment - Typo,
Testing Protocol
```
{{log (min 1 5)}} {{! Resolved to 1}}
{{log (max 1 5)}} {{! Resolved to 5}}
{{log (clamp 6 1 5)}} {{! Resolved to 5}}
{{log (clamp -6 1 5)}} {{! Resolved to 1}}
{{log (clamp 3 1 5)}} {{! Resolved to 3}}
```
Contributor
Author
|
Amended initial proposal notes with updated comments, and a testing protocol. |
Contributor
Author
|
Drafting due to issues with PR semantics as per previously outlined instructions by BC devs. Will correct and re-file when time permits. |
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Include of simple math helpers for inline calculations. All support Number types of Int and Float, but not edge case numbers such as NaN, +-infinity, or undefined.
Min: given
AandBreturn the smaller of the two on a standard number line.Max: given
AandBreturn the larger of the two on a standard number line.Clamp: given
test,minandmaxreturn the tested value if it falls within the range ofminandmaxsuch thatmin < test < maxis satisfied on a standard number line. If the constraint is not satisfied, return the closest bounding constraint.Note for implementation
File:
thirdParty.jsin directoryhelpers/thirdParty.jswill also need line 71 to be modified to include the string names of the new functions.include: ['add', 'subtract', 'divide', 'multiply', 'floor', 'ceil', 'round', 'sum', 'avg', 'min', 'max', 'clamp']What? Why?
Because these math functions are currently missing from the standard library.
How was it tested?
None required, mirror of existing functionhelper.addwith math operations swapped for logical operations.Uses inline ternary operators for state evaluation.Edit:
Adding Of Testing Protocol in comment:
cc @bigcommerce/storefront-team