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fix(currency): Handle not-quite-zero values #1477
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IEEE 754 floating point sometimes results in values that are very small, rather than zero. One example is 1.0 + 1.07 - 2.07, which returns 4.440892098500626e-16 instead of 0. This change tweaks the number formatting logic so that an exponential value with a negative exponent that is larger than the precision+1 returns 0 instead. For example: with precision 2, anything with an exponent of -4, -5 or more would become 0. 9e-3 = 0.009 = 0.01, but 9e-4 = 0.0009 = 0.001 = 0.00. This detail is unlikely to matter since this quirk is usually only triggered with values very close to zero. Closes angular#1469
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IEEE 754 floating point sometimes results in values that are very small,
rather than zero. One example is 1.0 + 1.07 - 2.07, which returns
4.440892098500626e-16 instead of 0.
This change tweaks the number formatting logic so that an exponential
value with a negative exponent that is larger than the precision+1
returns 0 instead. For example: with precision 2, anything with an
exponent of -4, -5 or more would become 0. 9e-3 = 0.009 = 0.01, but 9e-4
= 0.0009 = 0.001 = 0.00. This detail is unlikely to matter since this
quirk is usually only triggered with values very close to zero.
Closes #1469