jeena/en.javascript.info
1
0
Fork 0
Code Issues Pull requests Projects Packages Wiki Activity Actions

Minus operation instead of minus sign

Browse source
This commit is contained in:
Brent Guffens 2018-01-17 09:18:11 +01:00 • committed by GitHub
parent c693192018
commit fb5c7b6fa7
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
1 changed files with 1 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

2
1-js/02-first-steps/06-type-conversions/1-primitive-conversions-questions/solution.md
View file

@ -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.
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.
4. `undefined` becomes `NaN` after the numeric conversion.