childrenWithName()

All child layers of this layer, filtered by name. (Alias: subLayersByName)
译：所有这层的子层，按名称过滤。（别名：sublayersbyname）

Arguments（参数）

name — A string of the layer name. 译：一个图层名称的字符串

layerA = new Layer

layerB = new Layer
    name: "navigation"
    parent: layerA

layerC = new Layer
    name: "button"
    parent: layerA

print layerA.childrenWithName("button")
# Output: []