help me on arrays-dodgy

[saintxx]

I'm not a novice so I don't need tutorial. All I want to know is (based on the code below), how would I add the inputs(in for loop) to the candidateArray elements (e.g. input of 70 for first prompt would result in 300).ANY HELP WOULD BE MOST APPRECIATIVE



var totalMembership;
var totalVotes;
var candidateArray = new Array(230, 341, 196, 81, 257);
totalMembership = window.prompt ('Please enter the number of members', '');
totalMembership = parseFloat(totalMembership);
totalVotes = 0;

for(var i = 0; i < candidateArray.length; i = i + 1) //a simple counter loop
{
candidateArray[i] = window.prompt('enter votes cast for candidate ' + (i + 1), '');
}

[toicontien]

The window.prompt method returns a string when the user enters something, or null if the user enters nothing. You should also check that the number entered is a valid number. Try this code below:

var totalMembership = 0;
var totalVotes = 0;
var candidateArray = [230, 341, 196, 81, 257];
var candidateLen = candidateArray.length;

function calcVotes() {
  var i = 0;
  var votes = 0;
  
  totalMembership = promptValidNumber("Please enter the number of members", "",
      "Please enter a valid number of members");
  
  for(i; i < candidateLen; i++) {
    votes = promptValidNumber("enter votes cast for candidate " + (i+1), "",
        "Please enter a valid number of votes.");
    candidateArray[i] += votes;
  }
}

function promptValidNumber(promptStr, promptVal, errorStr) {
  var n = null;
  
  promptVal = promptVal || "";
  errorStr = errorStr || "Please enter a valid number.";
  
  while ( isNaN(n = Number(prompt(promptStr, promptVal))) ) {
    alert(errorStr);
  }
  
  return n;
} 

[saintxx]

This code needs to be without functions, and I only want to know what is wrong with it and maybe 1 or two lines corrected.

I want to add what i type in the prompt to each element, so for example, 70 in the first prompt would make the first element in the array 300.
*****NO FUNCTIONS*****


var totalMembership;
var totalVotes = 0;
var candidateArray = [230, 341, 196, 81, 257];
var votes = 0;
totalMembership = window.prompt('Please enter the number of members', '');

for(var i = 0; i < candidateArray.length; i = i + 1)
{
var votes = window.prompt('enter votes cast for candidate ' + (i + 1), '');
votes = parseFloat(votes);
}
document.write(candidateArray[i] + '<BR>');

[toicontien]

Sounds like a class project?

[JMRKER]

1. You need to MOVE the last '}' character to the VERY last line as it
does not include the display inside the loop.
2. You need to add the prompted input to the current contents of the
candidateArray if you want to see 230+70 to equal 300, otherwise only
original value will be displayed.
3. Finally with your statement

*****NO FUNCTIONS*****

you violate your original code with the use of
a. window.prompt()
b. parseFloat()
c. document.write()
Each of which is a function.