如何覆盖js / varien / product.js中的JS函数？ [英] How do I override a JS function in js/varien/product.js?

问题描述

我正在制作一个Magento扩展，在产品视图页面上调用自定义JS文件。这个自定义JS文件将加载最后一个，需要覆盖/js/varien/product.js底部的formatPrice（）函数。

I am making a Magento extension that calls a custom JS file on the product view page. This custom JS file will load last and needs to override the formatPrice() function found at the bottom of /js/varien/product.js.

原始的formatPrice函数是如下：

The original formatPrice function is as follows:

formatPrice: function(price) {
return formatCurrency(price, this.priceFormat);
}

我想用以下内容替换/覆盖此函数：

I would like to replace / override this function with the following:

formatPrice: function(price) {
if (price % 1 == 0) { this.priceFormat.requiredPrecision = 0; }

return formatCurrency(price, this.priceFormat);
}

如何在我的自定义JS文件中编写JS代码，以便它能够正确覆盖此功能？我不熟悉JS足以知道。

How do I write the JS code in my custom JS file so that it will properly override this function? I'm not familiar with JS enough to know.

推荐答案

如果它是全局的那么你可以做 window.formatPrice = myNewFormatPrice; 如果它是一个对象的成员，那么你会做类似的事情： anObject.formatPrice = myNewFormatPrice;

If it is global then you can just do window.formatPrice = myNewFormatPrice; if it is a member of an object then you would do something like: anObject.formatPrice = myNewFormatPrice;

如果您需要编辑对象的原型，请使用： Product.OptionsPrice.prototype.formatPrice = myFormatPrice;

If you need to edit the prototype of an object use: Product.OptionsPrice.prototype.formatPrice = myFormatPrice;

此外，您还需要查看 requiredPrecision 的访问权限。如果它是私人或受保护，那么您将无法访问它。

Also you need to look into the access to requiredPrecision. If it is "private" or "protected" then you won't be able to access it.

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