dragger

基本解釋

A dragger is an object that moves a DOM element around in response to a moving cursor.
一個 dragger 就是一個對象，它能對應(yīng)移動的光標(biāo)移動 DOM 元素。
The start method creates the translucent rectangle and passes it to another object called a dragger.
start 方法創(chuàng)建這個透明矩形并將其傳遞給另一個稱為 dragger 的對象。
You pass the current cursor coordinates to the dragger, and it updates the dragged object to move along with the cursor.
可以將當(dāng)前的光標(biāo)的坐標(biāo)傳遞給這個 dragger，它會更新所拖動的對象使其跟隨光標(biāo)的移動。

Knuckle-dragger Martin put his head round the door and growled at us to shut up.
NEWYORKER: Diary of an Interesting Year
Another notable foot-dragger over research is the Vatican, which probably has some highly pertinent files.
ECONOMIST: Nazi gold
Min.us then gives the file dragger a link that can be shared with a group of people.
FORBES: Min.us Makes File Sharing A Snap