Javascript 循环的嵌套数组

我一直在想如何通过嵌套数组循环

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

以下是我的尝试：

//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 
            }
        }
    })

//嵌套数组
世界形状=[
[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]
];
//尝试通过子数组中的每个项循环
（功能（）{
var wShapes=worldShapes；//创建一个局部变量
var wLen=wShapes.length；//将长度存储为变量
对于（变量i=0；i

要执行该函数，请添加

（）

（函数（）{
var wShapes=worldShapes；//创建一个局部变量
var wLen=wShapes.length；//将长度存储为变量
对于（变量i=0；i

只需添加

（）到代码的最后；-）

您只是忘记调用匿名函数了
预期的输出是什么？代码有什么问题？你试过运行它吗？你已经将它包装在一个函数中，但是你没有执行这个函数。但是为什么要把它包装在一个函数中呢？你收到了错误消息吗？你的代码看起来绝对正确。什么是你认为它不应该做的？
(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 
        }
    }
}()); // here