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我试图执行一个简单的forEach循环。Javascript:错误forEach
if (this.list.length == 0) {
this.list.push({ name, price, familly, quantity })
} else {
this.list_achat.forEach((element) => {
if (element.name === name && element.familly === familly) {
element.quantity += quantity
} else {
this.list.push({ name, price, familly, quantity })
}
this.prix_totale += element.quantity * element.price
})
}
当我第一次添加一个产品在list_achat加时list_achat.length == 0,但是当我添加另一个产品,会发生什么
[
{"name":"prod1","price":"10","familly":"famille1","quantity":"4"},
{"name":"prod2","price":"10","familly":"famille1","quantity":"3"},
{"name":"prod2","price":"10","familly":"famille1","quantity":"2"},
{"name":"prod2","price":"10","familly":"famille1","quantity":1}
]
我只想保留
[
{"name":"prod1","price":"10","familly":"famille1","quantity":"4"},
{"name":"prod2","price":"10","familly":"famille1","quantity":"3"}
]
可能是什么问题?
寻求帮助时,请走可以一次一次地对代码进行格式化和缩进。 (当*不*请求帮助时,这是一个好主意。) –