避免多次重复初始 echarts 通过echarts.getInstanceByDom() 检查是否已存在实例,避免重复初始化 <template></template>import{ ref }from'vue'letchartNode =ref
// 校验 Dom 节点上是否已经挂载了 ECharts 实例,只有未挂载时才初始化 chartInstance.value = echarts.getInstanceByDom(chartRef.value); if(!chartInstance.value) { chartInstance.value = echarts.init( chartRef.value, props.theme, { renderer:"canvas"} ); draw(); } }; watch(props, () => ...
// export default Mqtt.getInstance(JSON.parse(import.meta.env.VITE_OTHER_SERVICE_BASE_URL).mqtt); const { protocol, host } = window.location; export default Mqtt.getInstance(${protocol.replace('http', 'ws')}//${host.replace('localhost', '127.0.0.1')}/mqtt/); 1 2 3 4 5 6 7 8 ...
const initChart = () => { if (!dom.value || echarts.getInstanceByDom(dom.value)) return; chartInstance = echarts.init(dom.value, null, echartsInitOpts); }; /** 获取图表实例 */ const getChartInstance = () => chartInstance; onMounted(() => { initChart(); }); return { getCh...
onMounted, getCurrentInstance }from'vue'exportdefault{name:'GetInstance',data() {return{x:1,y:2} },mounted() {console.log('this2',this)console.log('x',this.x,'y',this.y) } } 此时浏览器的显示效果如下: 正如我们所想的,用options API,具体的实例都可以如期的被调用出来。 下面我们用...
}constmessage= (opts) => {returngetInstance(opts); }; message.install=(app) =>{// 这样就可以值选项式api中通过this.$message的形式调用了 返回一个包含close的对象,可以手动关闭,也支持自动关闭app.config.globalProperties.$message= message;
getInstance({ Container: containerRef.value, }); instance.bind("connection", function(info) { console.log("Connection established", info); }); instance.bind("connectionDetached", function(info) { console.log("Connection detached", info); }); }); 通过以上步骤,你可以在Vue 3项目中成功集成...
通过调用getInstance函数就可以得到单例的Validate实例对象. 输入框组件通过给getValidate函数传入一条rule,就能返回该组件需要的校验函数.接下来看一下getValidate函数是如何通过rule来生成校验函数的,代码如下: AI检测代码解析 /** * 生成校验函数 */ export const getValidate = (rule) => { ...
getInstance(); service.mmtg.backButtonClick(backButtonClicked); state.address = service.user.address; state.tokenList = service.getTokenList(); loadBalnace(); }); const agree = async () => { proxy.$toast.loadingAll("Logging in"); await service.login(); proxy.$toast.clear(); data....
*/privatestaticStringencrypt(String data, String key, String iv){try{//"算法/模式/补码方式"NoPadding PkcsPaddingCiphercipher=Cipher.getInstance("AES/CBC/NoPadding");intblockSize=cipher.getBlockSize();byte[] dataBytes = data.getBytes();intplaintextLength=dataBytes.length;if(plaintextLength % bl...