How 'ember-table-table-container's width is being calculated(Addepar/ember-table)?

Below is given in addon.less

`.ember-table-table-container {
  **// Height and Width defined dynamically through JS**
  // Let Antiscroll handle the overflow
  overflow: hidden;
  // deal with Linux Chrome v38 wrapping bug
  // reset to normal in .ember-table-table-block
  white-space: nowrap;
  position: relative;
  z-index: 3;

In which JS, width calculated method defined and what is the method name ?