Doubt with Floyd’s Triangle

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I have a problem with this code:

function calculate() {
  var input = document.getElementById("input").value;
  var x = input;
  for (var i = input; i > 1; i--) {
    x += i;
  }
  var j = 1;
  var k = 1;
  var number = 1;
  var output;
  while (k < x) {
    output = number.toString() + " ";
    number += 1;
    if (number = j) {
      output += "\n";
      j = 1;
      k++;
    }
  }
  document.getElementById("output").innerHTML = output;
}
<input id="input" type="number" />
<button onclick="calculate()">Calculate</button><br/>
<span id="output"></span>

It always returns 1. Can anyone please help me?

javascript
  • 1

    Why not edit the question and describe what the code should do?

  • 2

    if (number == j) instead of if(number = j) you are testing and not assigning... And yet, you have an infinite loop in your algorithm, do a table test.

  • Then see that the solution is much simpler https://www.rushis.com/floyds-triangle-javascript-code/

  • The value entered in input will define what?

1 answer

0


<input id="input" type="number" />
<button onclick="calculate()">Calculate</button><br/>
<span id="output"></span>

<script>
function calculate() {

var input = document.getElementById("input").value;
var x = input;


  var string;
  var increm=1;
  var i;

for(i=0;i<x;i++){
  string = "";

  var j=0;

  while(j<= i){
        output += string + "    " + increm;
        j++;
        increm++;
}
output+= "<br>";
}

  document.getElementById("output").innerHTML = output;
}
</script>

  • Please explain your answer. What is trivial to you may not be trivial to others.

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