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Randell Dawson 1494a50123 fix(guide): restructure curriculum guide articles (#36501)
* fix: restructure certifications guide articles
* fix: added 3 dashes line before prob expl
* fix: added 3 dashes line before hints
* fix: added 3 dashes line before solutions
2019-07-24 13:29:27 +05:30

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944 B
Markdown

---
title: Use the Lifecycle Method componentWillMount
---
# Use the Lifecycle Method componentWillMount
---
## Problem Explanation
The challenge is a basic introduction to React's LifeCycle components.
These methods are also called Lifecycle Hooks.
---
## Hints
### Hint 1
Log something to the console in the ```react componentWillMount ``` method.
### Hint 2
The ``` console.log(); ``` statement is used to log to the browser console.
---
## Solutions
<details><summary>Solution 1 (Click to Show/Hide)</summary>
Since you can log anything, use the ``` console.log(); ``` and pass in a string. The ``` componentWillMount ``` method should look like:
```jsx
componentWillMount() {
console.log('Component being mounted');
}
```
**Note:** The ``` componentWillMount ``` Lifecycle method has been deprecated as of version 17, and does not work on later versions. [(Source)](https://reactjs.org/docs/react-component.html)
</details>