Find Sum of Two Numbers Using JavaScript in 1st one is manual entry and 2nd one is depend

by

Since I cannot find any pattern on the given criteria for the value of b, I suggest addressing this problem using ranges (although it is tiring). The criteria, however, fail if a > 10,000.

In order to address this, I’ve added a simple “catch” of alerting the user of incorrect input, and not to continue with the addition of the numbers (since no value for b was generated).

Below is the code:

function add() {
  var a, b, c;
  var within_range = true;
  a = Number(document.getElementById("first").value);
 
  if (a <= 200)
   b = 5;
  else if (a > 200 && a <= 1000)
   b = 10;
  else if (a > 1000 && a <= 2500)
   b = 20;
  else if (a > 2500 && a <= 5000)
   b = 50;
  else if (a > 5000 && a <= 10000)
   b = 1000;
  else {
   alert("First number must be less than or equal to 10,000.");
   within_range = false;
   document.getElementById("first").value = 10000;
  }
  
  if (within_range){
    c = a + b;
    document.getElementById("second").value = b;
    document.getElementById("answer").value = c;
  }
}
<input id="first">
<input id="second">
<button onclick="add()">Add</button>
<input id="answer">

More Related Contents:

  1. what happens when an item is deleted from a javascript array [duplicate]
  2. what I am doing wrong with javascript?
  3. All falsey values in JavaScript
  4. Events triggered by dynamically generated element are not captured by event handler
  5. How to use JavaScript regex over multiple lines?
  6. if-else statement inside jsx: ReactJS
  7. Why does the month argument range from 0 to 11 in JavaScript’s Date constructor?
  8. React Native – Image Require Module using Dynamic Names
  9. MSIE and addEventListener Problem in Javascript?
  10. How do I set multipart in axios with react?
  11. Splitting a JS array into N arrays
  12. fetch(), how do you make a non-cached request?
  13. Array() vs new Array()
  14. Properties of Javascript function objects
  15. How to populate the options of a select element in javascript
  16. react native use variable for image file
  17. How to use javascript conditionally like CSS3 media queries, orientation?
  18. When using setInterval, if I switch tabs in Chrome and go back, the slider goes crazy catching up
  19. RGB to HSV color in javascript? [closed]
  20. How to save a png from javascript variable
  21. javascript sort of HTML elements
  22. Is there an event for when a Chrome Extension popup is closed?
  23. Resetting form after submit in Angularjs
  24. Get the description of a ES6 Symbol
  25. JavaScript local and global variable confusion [duplicate]
  26. JavaScript dot notation [duplicate]
  27. Call setTimeout without delay
  28. How to use a return value in another function in Javascript?
  29. When or who does pass resolve and reject functions to JS promises?
  30. True Isometric Projection with HTML5 Canvas

Leave a Comment