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Minus operation instead of minus sign

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Brent Guffens 2018-01-17 09:18:11 +01:00 • committed by GitHub
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1-js/02-first-steps/06-type-conversions/1-primitive-conversions-questions/solution.md
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@ -17,6 +17,6 @@ undefined + 1 = NaN // (4)
``` ```
1. The addition with a string `"" + 1` converts `1` to a string: `"" + 1 = "1"`, and then we have `"1" + 0`, the same rule is applied. 1. The addition with a string `"" + 1` converts `1` to a string: `"" + 1 = "1"`, and then we have `"1" + 0`, the same rule is applied.
2. The subtraction `"-"` (like most math operations) only works with numbers, it converts an empty string `""` to `0`. 2. The subtraction `-` (like most math operations) only works with numbers, it converts an empty string `""` to `0`.
3. `null` becomes `0` after the numeric conversion. 3. `null` becomes `0` after the numeric conversion.
4. `undefined` becomes `NaN` after the numeric conversion. 4. `undefined` becomes `NaN` after the numeric conversion.