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Fixed grammar errors.

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This commit is contained in:
Lê Duy Quang
2021-02-25 04:21:57 -05:00
committed by Jean-Philippe Sirois
parent ac1ed508f7
commit 0862031bf9
1 changed files with 4 additions and 4 deletions
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src/content/resources/language/javascript/cannot-read-property.md
+4 -4
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@@ -76,10 +76,10 @@ undefined
#### `null` from failed queries #### `null` from failed queries
Some functions, for example `getElementById` from the browser API, returns Some functions, for example `getElementById` from the browser API, return
`null` if the function failed to find any result matching what is requested. `null` if the function failed to find any result matching what is requested.
If left unchecked and the returned value is used in other places, the "Cannot If left unchecked and the returned value is used in other places, the "Cannot
read property" might arise. read property" error might arise.
```html ```html
<!DOCTYPE html> <!DOCTYPE html>
@@ -129,8 +129,8 @@ Uncaught TypeError: Cannot read property 'message' of undefined
## Fixing ## Fixing
The way to fix the "Cannot read property `abc` of `null`/`undefined`" is of The way to fix the "Cannot read property `abc` of `null`/`undefined`" error is
course, to make sure what is being retrieved properties from is not either of course, to make sure what is being retrieved properties from is not either
`null` or `undefined`. Based on the reason behind the error, the programmer `null` or `undefined`. Based on the reason behind the error, the programmer
determines how the issue shall be fixed. determines how the issue shall be fixed.