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docs(select): Clarify documentation for ngOptions #9289
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ngOptions introduced `track by` in c32a859. Using `track by` puts constraints on the value you can use in the interpolation expression in ngOptions. This patch documents this. Closes angular#6564
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As mentioned in #8544 we're going to work on a proper fix for the issue. |
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ngOptions introduced
track byin c32a859.Using
track byputs constraints on the value you can use in the interpolationexpression in ngOptions. This patch documents this.
Closes #6564
Part 1 of the split of #8544 as requested by @btford