Print Out Javascript Array In Table

I have this array: var employees = [ { 'firstName':'John' , 'lastName':'Doe' }, { 'firstName':'Anna' , 'lastName':'Smith' }, { 'firstName':'Peter' , 'lastName': 'Jones' } ]; and

Solution 1:

Using jQuery you can do:

var txt = '{"employees":[' +
    '{"firstName":"John","lastName":"Doe" },' +
    '{"firstName":"Anna","lastName":"Smith" },' +
    '{"firstName":"Peter","lastName":"Jones" }]}';

// $.parseJSON will parse the txt (JSON) and convert it to an// JavaScript object. After its call, it gets the employees property// and sets it to the employees variablevar employees = $.parseJSON( txt ).employees;

var$table= $( "<table></table>" );

for ( var i =0; i < employees.length; i++ ) {
    var emp = employees[i];
    var$line= $( "<tr></tr>" );
    $line.append( $( "<td></td>" ).html( emp.firstName ) );
    $line.append( $( "<td></td>" ).html( emp.lastName ) );
    $table.append( $line );
}

$table.appendTo( document.body );

// if you want to insert this table in a div with id attribute // set as "myDiv", you can do this:$table.appendTo( $( "#myDiv" ) );

jsFiddle: http://jsfiddle.net/davidbuzatto/aDX7E/

Solution 2:

var table = document.createElement("table");
for (var i = 0; i < employees.length; i++) {
  var row = table.insertRow(-1);
  var firstNameCell = row.insertCell(-1);
  firstNameCell.appendChild(document.createTextNode(employees[i].firstName));
  var lastNameCell = row.insertCell(-1);
  lastNameCell.appendChild(document.createTextNode(employees[i].lastName));
}
document.body.appendChild(table);

Solution 3:

A reusable JSON to table conversion solution for objects in an array type of data structure. Object properties are inserted at the header cells and the values are inserted at the data cells. Sorry for my unorthodox indenting but it makes me feel comfortable with functional programming.

var employees = [
{ "firstName":"John" , "lastName":"Doe" }, 
{ "firstName":"Anna" , "lastName":"Smith" }, 
{ "firstName":"Peter" , "lastName": "Jones" }
],
goods = [
{ "ID":"0001" , "Description":"Cool Table", "Price":"499" , "Color":"Green" }, 
{ "ID":"0002" , "Description":"Ceramic Vase", "Price":"120" , "Color":"Beige" }, 
{ "ID":"0003" , "Description":"Titanium Ashtray", "Price":"999" , "Color":"Titanium Color" },
{ "ID":"0004" , "Description":"Story Book", "Price":"1" , "Color":"Yellow" },
{ "ID":"0005" , "Description":"Chair", "Price":"120" , "Color":"Pink" }
],


tableMaker = o => {var keys = Object.keys(o[0]),
                   rowMaker = (a,t) => a.reduce((p,c,i,a) => p + (i === a.length-1 ? "<" + t + ">" + c + "</" + t + "></tr>"
                                                                                   : "<" + t + ">" + c + "</" + t + ">"),"<tr>"),
                       rows = o.reduce((r,c) => r + rowMaker(keys.reduce((v,k) => v.concat(c[k]),[]),"td"),rowMaker(keys,"th"));
                   return"<table>" + rows + "</table>";
                  };

document.write(tableMaker(employees));
document.write(tableMaker(goods));