How do undefined or remove a javascript function?

Question

I defined a global Javascript function:

  function resizeDashBoardGridTable(gridID){
  var table = document.getElementById(\'treegrid_\'+gridID);
        .....
          


        

Answer 1

how about using a var?

// define it
var myFunction = function(a,b,c){
  console.log('Version one: ' + [a,b,c].join(','));
}
myFunction('foo','bar','foobar'); // output: Version one: foo,bar,foobar

// remove it
myFunction = null;
try { myFunction(); console.log('myFunction exists'); }
catch (e) { console.log('myFunction does not exist'); }

// re-define it
myFunction = function(d,e,f){
  console.log('Version two: ' + [d,e,f].join(','));
}
myFunction('foo','bar','foobar'); // output: Version two: foo,bar,foobar

OUTPUT:

[10:43:24.437] Version one: foo,bar,foobar
[10:43:24.439] myFunction does not exist
[10:43:24.440] Version two: foo,bar,foobar