vue.js 匹配数组方法

Question

所以我试图用 id_product == 输入的 myproduct 的值填写我的表单。但是当我运行代码时，该值不返回。我的代码有什么问题

this.products.forEach(i => {
       if(this.products[i].id == item.id_product)
        {
            
            this.form.product_name = this.products[i].product_name;
            
            this.form.id_category = this.products[i].id_category;
            this.form.description = this.products[i].description;
            this.form.price = this.products[i].price;
            this.form.color = this.products[i].color;
            this.form.size = this.products[i].size;
            this.form.stock = this.products[i].stock;
            this.form.weight = this.products[i].weight;
        } 
    });

Answer 1

Array.forEach() 回调的第一个参数是当前值，而不是索引。第二个参数（可选）是索引，所以要么像.forEach(product => {...})那样只传递当前值，要么像.forEach((product, i) => {...})那样传递索引

this.products.forEach(product => {
       if(product.id == item.id_product)
        {
            
            this.form.product_name = product.product_name;
            
            this.form.id_category = product.id_category;
            this.form.description = product.description;
            this.form.price = product.price;
            this.form.color = product.color;
            this.form.size = product.size;
            this.form.stock = product.stock;
            this.form.weight = product.weight;
        } 
    });