javascript - 嵌套数组 for 循环

Question

我一直在试图找出如何循环嵌套数组。

我有一个名为 worldShapes 的数组，其中包含子数组。我想循环遍历父数组并从中获取所有子数组。

这是我的尝试:

//Nested array

worldShapes = [

[33,108,66,141,99,174,99,207,132,207,165,207,165,240],

[132,306,165,306,165,339,165,372,132,405,99,405,99,438,132,438,165,438],

[198,339,231,339,264,372,297,372,330,405,363,438,396,438],

[198,174,198,273,231,306,264,306],

[231,174,231,240,264,273,297,273],

[396,306,462,306,495,339,495,372,528,405,528,438,561,438,594,471],

[660,504,561,504,495,504]

];

//trying to loop trough each item in the child array

(function(){
    var wShapes = worldShapes; //create a local variable
    var wLen = wShapes.length; //store the length as a variable

        for (var i = 0; i < wLen; i++) {
            for (var j = 0; j < wShapes[i].length; j++){
            console.log(wShapes[i][j]); //this is propably wrong, trying to access the current child item of the current parent array 
            }
        }
    })

Answer 1

只需将 (); 添加到代码的最后;-)

您只是忘记调用匿名函数