I am trying to improve the compliance of our interpreter with EcmaScript 5.1, and have just been working on the implementation of toPrecision.
I'm not sure that the algorithm given is consistent with existing implementations if the precision is 1. As far as I can see the spec. would result in a trailing period which doesn't seem expected and doesn't seem to match existing implementations. Taking an example of 123.456 and working this through. At stage 10a e should be 2 and n be 1 At stage 10b m will be set to "1" At stage 10c e(=2) > p(=1) At stage 10c(i) a will be "1" and b the empty string At stage 10c(ii) m is updated to a + '.' + c which would appear to be "1." 10c(iii-iv) will evaluate c and d as "+" and "2" respectively 10c(v) will update m to "1.e+2" I take it I've missed something here? -- Neil
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