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minor fixes

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This commit is contained in:
Ilya Kantor 2019-07-26 23:21:49 +03:00
parent 689975093c
commit f6ff773033
24 changed files with 67 additions and 76 deletions
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1-js/02-first-steps/07-operators/article.md
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@ -93,9 +93,7 @@ alert( +"" ); // 0
It actually does the same thing as `Number(...)`, but is shorter.
The need to convert strings to numbers arises very often. For example, if we are getting values from HTML form fields, they are usually strings.
What if we want to sum them?
The need to convert strings to numbers arises very often. For example, if we are getting values from HTML form fields, they are usually strings. What if we want to sum them?
The binary plus would add them as strings:
@ -253,14 +251,14 @@ So, there are special operators for it:
```js run no-beautify
let counter = 2;
counter++; // works the same as counter = counter + 1, but is shorter
counter++; // works the same as counter = counter + 1, but is shorter
alert( counter ); // 3
```
- **Decrement** `--` decreases a variable by 1:
```js run no-beautify
let counter = 2;
counter--; // works the same as counter = counter - 1, but is shorter
counter--; // works the same as counter = counter - 1, but is shorter
alert( counter ); // 1
```