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Miguel Adan
Front End Web Development Techdegree Student 2,621 PointsThe Build an Object Challenge, Part 2 Solution Question Why can't I use the print() function outside of a loop?
In this lesson we use a for loop to print out records about students which is the easy part but when I try and use the "print()" function given to us outside of the loop it will only show whatever I last asked it to print instead of everything in the for loop and stuff outside the loop. Does that make sense? please help!
1 Answer
Steven Parker
231,268 PointsThe "print" function replaces the contents of the output div each time you call it. So it's normal for it to display only the last argument given to it.
But the loop was using it to print "message", which it kept expanding with more data each iteration by using the concatenating assignment operator ("+=").
Miguel Adan
Front End Web Development Techdegree Student 2,621 PointsMiguel Adan
Front End Web Development Techdegree Student 2,621 Pointsvar message = ''; var student;
function print(message){ var outputDiv = document.getElementById('output'); outputDiv.innerHTML = message; }
var students=[ { Name:'Miguel', Track:'Front End', Achievment:'none', Points:2000, Age:29 }, { Name:'Jeka', Track:'back End', Achievment:'all', Points:9000, Age:31 },
{ Name:'Rossi', Track:'GP', Achievment:'champ', Points:25, Age:37} ]; for(var i = 0; i < students.length; i += 1){ student = students[i]; message += '<h2>Student: ' + student.Name + '</h2>'; message += '<p> Track: ' + student.Track + '</p>'; print(message); }*/
*IN THIS CODE THE RECORDS ALL CALLED ON WILL PRINT ONTO THE PAGE* *but when I add the following to the end of the code only the last portion is printed to the *page. WHY?!?
print(student.Points);