JavaScript
html
// define a function to hold data for a Person
function Analysis(numbers, mean, mode, median) {
this.numbers = numbers;
this.mean = mean;
this.mode = mode;
this.median = median;
this.role = "";
}
// define a setter for role in Person data
Analysis.prototype.setRole = function(role) {
this.role = role;
}
// define a JSON conversion "method" associated with Person
Analysis.prototype.toJSON = function() {
const obj = {name: this.numbers, mean: this.mean, mode: this.mode, role: this.role};
const json = JSON.stringify(obj); // json/string is useful when passing data on internet
return json;
}
var mainset = new Analysis("1,2,3,1", "7/4", "1", "3/2"); // object type is easy to work with in JavaScript
logItType(mainset); // before role
logItType(mainset.toJSON()); // ok to do this even though role is not yet defined
// output of Object and JSON/string associated with Teacher
mainset.setRole("Main Set"); // set the role
logItType(mainset);
logItType(mainset.toJSON());
// define a student Array of Person(s)
var numbers = [
new Analysis("1,4,3,4", "3", "4", "7/2"),
new Analysis("4,2,2,2", "10/4", "2", "2"),
new Analysis("9,8,7,8", "8", "8", "8"),
new Analysis("0,0,0,9", "9/4", "0", "0"),
new Analysis("1,9,9,2", "21/4", "9", "11/2")
];
// define a classroom and build Classroom objects and json
function Set(students){ // 1 teacher, many student
// add each Student to Classroom
mainset.setRole("Main Set");
this.mainset = mainset;
this.classroom = [mainset];
this.numbers = numbers;
this.numbers.forEach(numbers => { numbers.setRole("Numbers"); this.classroom.push(numbers); });
// build json/string format of Classroom
this.json = [];
this.classroom.forEach(numbers => this.json.push(numbers.toJSON()));
}
math = new Set(numbers);
// output of Objects and JSON in CompSci classroom
logItType(math.classroom); // constructed classroom object
logItType(math.classroom[0].name); // abstract 1st objects name
logItType(math.json[0]); // show json conversion of 1st object to string
logItType(JSON.parse(math.json[0])); // show JSON.parse inverse of JSON.stringify
// define an HTML conversion "method" associated with Classroom
Set.prototype._toHtml = function() {
// HTML Style is build using inline structure
var style = (
"display:inline-block;" +
"border: 2px solid grey;" +
"box-shadow: 0.8em 0.4em 0.4em grey;"
);
// HTML Body of Table is build as a series of concatenations (+=)
var body = "";
// Heading for Array Columns
body += "<tr>";
body += "<th><mark>" + "Numbers" + "</mark></th>";
body += "<th><mark>" + "Mean" + "</mark></th>";
body += "<th><mark>" + "Mode" + "</mark></th>";
body += "<th><mark>" + "Median" + "</mark></th>";
body += "</tr>";
// Data of Array, iterate through each row of compsci.classroom
for (var row in math.classroom) {
// tr for each row, a new line
body += "<tr>";
// td for each column of data
body += "<td>" + math.classroom[row].numbers + "</td>";
body += "<td>" + math.classroom[row].mean + "</td>";
body += "<td>" + math.classroom[row].mode + "</td>";
body += "<td>" + math.classroom[row].median + "</td>";
// tr to end line
body += "<tr>";
}
// Build and HTML fragment of div, table, table body
return (
"<div style='" + style + "'>" +
"<table>" +
body +
"</table>" +
"</div>"
);
};
// IJavaScript HTML processor receive parameter of defined HTML fragment
$$.html(math._toHtml());