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Merge pull request #158 from fuchodeveloper/patch-1

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updated article.md
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Ilya Kantor 2017-09-03 19:18:28 +03:00 • committed by GitHub
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1-js/05-data-types/03-string/article.md
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@ -236,7 +236,7 @@ alert( str.indexOf("id") ); // 1, "id" is found at the position 1 (..idget with
The optional second parameter allows to search starting from the given position. The optional second parameter allows to search starting from the given position.
For instance, the first occurence of `"id"` is at the position `1`. To look for the next occurence, let's start the search from the position `2`: For instance, the first occurrence of `"id"` is at the position `1`. To look for the next occurrence, let's start the search from the position `2`:
```js run ```js run
let str = 'Widget with id'; let str = 'Widget with id';
@ -245,7 +245,7 @@ alert( str.indexOf('id', 2) ) // 12
``` ```
If we're interested in all occurences, we can run `indexOf` in a loop. Every new call is made with the position after the previous match: If we're interested in all occurrences, we can run `indexOf` in a loop. Every new call is made with the position after the previous match:
```js run ```js run
@ -295,7 +295,7 @@ if (str.indexOf("Widget")) {
The `alert` in the example above doesn't show, because `str.indexOf("Widget")` returns `0` (meaning that it found the match at the starting position). Right, but `if` considers that to be `false`. The `alert` in the example above doesn't show, because `str.indexOf("Widget")` returns `0` (meaning that it found the match at the starting position). Right, but `if` considers that to be `false`.
So, we should actualy check for `-1`, like that: So, we should actually check for `-1`, like that:
```js run ```js run
let str = "Widget with id"; let str = "Widget with id";