Google Maps API - 这一行的含义/功能是什么？

Question

我正在为Google地图添加搜索框。从文档（https://developers.google.com/maps/documentation/javascript/examples/places-searchbox）：

// Create the search box and link it to the UI element. 
var input = document.getElementById('pac-input'); 
var searchBox = new google.maps.places.SearchBox(input); 
map.controls[google.maps.ControlPosition.TOP_LEFT].push(input); 

我想明白这是如何工作在低水平。 最后一行是做什么的？如果它将搜索框链接到UI元素，如何评论，它是如何做到的？

Answer 1

截至https://developers.google.com/maps/documentation/javascript/controls#CustomExample

// Add the control to the map at a designated control position 
// by pushing it on the position's array. This code will 
// implicitly add the control to the DOM, through the Map 
// object. You should not attach the control manually. 
map.controls[google.maps.ControlPosition.TOP_RIGHT].push(controlDiv); 

解释