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Ilya Kantor 2017-03-24 17:28:37 +03:00
parent c9401b3104
commit 0fcf9f84fa
58 changed files with 673 additions and 643 deletions
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5
1-js/02-first-steps/13-switch/article.md
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@ -8,7 +8,7 @@ It gives a more descriptive way to compare a value with multiple variants.
## The syntax
The `switch` has one or more `case` blocks and an optional default.
The `switch` has one or more `case` blocks and an optional default.
It looks like this:
@ -142,7 +142,7 @@ Now both `3` and `5` show the same message.
The ability to "group" cases a side-effect of how `switch/case` works without `break`. Here the execution of `case 3` starts from the line `(*)` and goes through `case 5`, because there's no `break`.
## The type matters
## Type matters
Let's emphase that the equality check is always strict. The values must be of the same type to match.
@ -170,4 +170,3 @@ switch (arg) {
1. For `0`, `1`, the first `alert` runs.
2. For `2` the second `alert` runs.
3. But for `3`, the result of the `prompt` is a string `"3"`, which is not strictly equal `===` to the number `3`. So we've got a dead code in `case 3`! The `default` variant will execite.