Javascript String Question

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I'm trying to write a JS program with a function called 'makex'. This function should accept a parameter and then return a string that repeats the letter X as many times as the parameter.
For example, if I called makex(5) it should output XXXXX (5 X's). Here's my code so far:

JavaScript

function makex(howMany)
{ 
  console.log("The parameter was "+howMany);
  for(var x = 0; x <= howMany; x++)
  {
   console.log(x); 
  }
}
  
console.log(makex(5));

Posted 10-Apr-13 23:26pm

dteece1

Updated 11-Apr-13 0:08am

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

v2

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Comments

Matej Hlatky 11-Apr-13 5:36am

homework? :)

dteece1 11-Apr-13 5:37am

Sort of, it's work I want to finish from earlier today. I've thought about it, but I can't figure it out.

2 solutions

Solution 2

Try

C#

function makex(howMany)
{
console.log("The parameter was "+howMany);
string t;

for(var x = 0; x <= howMany; x++)
{
  t = t + 'X';
}
console.log(x);
}

If you want to make the letter dynamic i.e. allow any letter instead of just X, try

C#

function makex(howMany, text)
{
console.log(&quot;The parameter was &quot;+howMany);
string t = t + 'X';

for(var x = 0; x &lt;= howMany; x++)
{
  t = t + text;
}
console.log(x);
}

Posted 10-Apr-13 23:52pm

Abhinav S

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Matej Hlatky · Accepted Answer · 2013-04-10T23:46:00

Solution 1

Try this:

JavaScript

function makex(howMany) {
  if (howMany < 0)
    throw new RangeError("Invalid string length");

  var strBuf = '';

  while (howMany--)
    strBuf += "x";

  return strBuf;
}

Posted 10-Apr-13 23:46pm

Matej Hlatky

Comments

dteece1 11-Apr-13 5:50am

Oh right, I didn't know you could use the value of howMany decrementing for a "while" condition.
In any case, this worked. Thank you very much