Given the task of defining a function that extracts the mode of weights from an HTML table containing age and weight data for individuals within a specified age range. The function needs to be able to handle tables of any size. I am looking for the most effective way to filter rows based on age and then extract the corresponding weights into an array. While I initially considered using square bracket notation, it seems this is not applicable with HTML tables in JavaScript. Are there alternative methods similar to square bracket notation that can be used for HTML tables? My primary focus is understanding how to manipulate HTML tables efficiently in Javascript, rather than solving this specific problem.
function birthWeightByAge(ageWeightTbl, rowCount, minVal, maxVal) {
var weightArray = [];
//Iterate through each row in the table
for (var i =0; i < rowCount; i++) {
//Extract age and weight data for the current row. Is there a different syntax or approach I should consider?
var age = ageWeightTbl[i][0];
var weight = ageWeightTbl[i][1];
//Check if the weight falls within the specified range
if (weight > minVal && weight < maxVal) {
//If it meets the criteria, store the age and weight values in arrays
ageArray.push(age);
weightArray.push(weight);
}
}
var weightMode = mode(weightArray);
}Additional Question: Is there a more user-friendly data format that can be displayed on an HTML page but is easier to manipulate in JavaScript? If so, please provide an overview of its advantages and functionality.
I have included a sample table for testing purposes:
//Function to create a mock table with random data for testing
function generate_table(rows) {
// Get the body element
var body = document.getElementsByTagName("body")[0];
// Create table and tbody elements
var tbl = document.createElement("table");
var tblBody = document.createElement("tbody");
// Populate cells in the table
for (var i = 0; i < rows; i++) {
// Create a row
var row = document.createElement("tr");
for (var j = 0; j < 2; j++) {
// Create a cell and add text content
var cell = document.createElement("td");
if (j<1) {
var cellText = document.createTextNode(""+Math.round(100*Math.random())+"");
}
else {
var cellText = document.createTextNode(""+Math.round(10*Math.random())+"");
}
cell.appendChild(cellText);
row.appendChild(cell);
}
// Add the row to the table body
tblBody.appendChild(row);
}
// Append tbody to table
tbl.appendChild(tblBody);
// Append table to body
body.appendChild(tbl);
// Set table border attribute
tbl.setAttribute("border", "2");
}
//Sample Output: {"Mode": 9}