B2G/gecko/browser/base/content/newtab/cells.js
/**
   * The previous cell in the grid.
   */
The previous cell in the grid.
The previous cell in the grid .
get previousSibling() {
    let prev = this.node.previousElementSibling;
    prev = prev && prev._newtabCell;
    Object.defineProperty(this, "previousSibling", {value: prev, enumerable: true});
    return prev;
  }
get previousSibling ( ) { let prev = this . node . previousElementSibling ; prev = prev && prev . _newtabCell ; Object . defineProperty ( this , "previousSibling" , { value : prev , enumerable : true } ) ; return prev ; }
The previous cell in the grid.
The previous cell in the grid .
// Cache this value, overwrite the getter.