How to add files to staging?

To add files to the staging area in Git, you can use the git add command. Here are some common methods:

Add Specific Files: To add specific files, list them after the git add command:
```
git add filename1 filename2
```
Add All Changes in the Current Directory: To add all changes (new, modified, and deleted files) in the current directory:
```
git add .
```
Add All Files with a Specific Extension: To add all files with a specific extension (e.g., .js):
```
git add *.js
```
Add All Changes in the Repository: To add all changes in the entire repository:
```
git add -A
```

After adding files to the staging area, you can check the status using:

git status

This will show you which files are staged for the next commit.