Kinetic.js使用字符串搜索ID

Question

EDIT: I want to use a string rectString because I will be using a loop to get all the rectangles and checking to see if any of them have a specific property.

I have a set of rectangles, say their names are 'rect1' , 'rect2' , and 'rect3'. I have been trying to search different ways to search my stage such as:

var rectString="rect1";
var method1= stage.get(rectString)[0];
var method2= stage.get(rectString);
var method3 =stage.find(rectString);
var method4=node.getAttr(rectString);

and unfortunately none of these work. I am trying to get the stroke color of the shape and then change it using the ID of the shape. Thanks for your help

Answer 1

This will get all the rectangles on the stage into a collection:

var allRectangles=stage.find("Rect");

Then you can apply a function to each rectangle like this:

// run a function for each element in the allRectangles collection

allRectangles.each(function(rect){

    // check if this rect has a red stroke

    if(rect.stroke()=="red"){

        // if the stroke is red, change the stroke to blue

        rect.stroke("blue");

    }

});

layer.draw();