Class06 Answer:

Operate iris_model in JavaScript.

I operated iris_model in JavaScript using my Chrome-browser.

I got started by calling a simple shell script to start a web server:

cd ~ann/mljs
./http.bash

Next, I browsed a URL: http://localhost:8080/iris2.html

I saw this:


Asking the model to issue a prediction is easy; I just pressed the predict-button.

To see JavaScript create the model, I right-clicked on the page to bring up the inspect-UI:


I found the HTML which connects the button to JavaScript:


I found handleClick() in iris2.js:


I set a breakpoint at line 32:


I clicked the predict-button and watched control flow to line 32:


I stepped through the code and watched the 3-predictions appear in an object named: outputData:


I watched D3.js wrap those 3-predictions in HTML-li-elements and send them to iris2.html for display:



I use this list to describe what happened:

Class06 Lab


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