How to write javascript

How to write javascript: first create a new html file; then write the js code in [<script type="text/javascript"></script>]; finally test whether it is successful.

The operating environment of this tutorial: Windows 7 system, JavaScript version 1.8.5, DELL G3 computer.

How to write javascript:

1. First write an ordinary html. The following is the simplest html as an example.

#2. Write a js above it. Everyone should write js code in <script type="text/javascript"></script>.

#3. Write a simple pop-up box in js. The pop-up box is alert('');Enter what you want to write.

4. Whether the test is successful.

5. Click OK to display the content written on our web page

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