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我設置在安裝我的回調:的WebSocket的onMessage事件犯規更新組件數據
data() {
return {
code: 'Apple',
}
},
mounted() {
console.log(this.code) // prints 'Apple'
this.$options.sockets.onopen = this.wsOpen();
this.$options.sockets.onmessage = this.logMessage(msg);
},
methods: {
logMessage(msg){
this.code += "\n" + msg.data;
console.log("this.code: " + this.code);
},
}
但是它告訴我,「味精」沒有定義。 下面的作品,但是this.code變成超出範圍:
this.$options.sockets.onmessage= function (msg) {
console.log(msg.data) // this works, msg is not undefined here
console.log(this.code) // doesnt work, this.code is undefined
}
我想我做了愚蠢的事情。