Function maybeClear

static/editor.md/lib/codemirror/addon/tern/tern.js:597–600

()

    var where = cm.cursorCoords();
    var tip = cm.state.ternTooltip = makeTooltip(where.right + 1, where.bottom, content);
    function maybeClear() {
      old = true;
      if (!mouseOnTip) clear();
    }
    function clear() {
      cm.state.ternTooltip = null;
      if (!tip.parentNode) return;