Question

Java Script

Event Handler

Create an event handler that runs the makeTree() function when the page loads.

ERROR

Unit TestIncomplete

Event handler runs makeTree() when the page loads

Test Output

window.onload
    1) "before all" hook in "window.onload"
    ✓ runs the `makeTree` function 


  1 passing (347ms)
  1 failing

  1) window.onload
       "before all" hook in "window.onload":
     Error: done() called multiple times in hook <window.onload "before all" hook in "window.onload"> of file /root/sandboxb7d8e52b/nt-test-046a66a3.js; in addition, done() received error: TypeError: Cannot read property '_ownerDocument' of undefined
      at process._fatalException (internal/bootstrap/node.js:496:27)
(node:1330) ExperimentalWarning: The fs.promises API is experimental

Code

"use strict";

//global variables declaration

var nodeCount=0;

var elemCount=0;

var textCount=0;

var wsCount=0;

//event to run fuction

window.onload=makeTree;

  

function makeTree() {

  

  

}

function makeBranches(treeNode, nestedList) {

  

}

   

function isWhiteSpaceNode(tString) {

   return !(/[^\t\n\r ]/.test(tString));

}

Answer 1

As you see above I didn't get any error regarding window.onload. it executes perfectly for me. If this is not the question you asked or any quaries please comment. Thank you.