一、案例效果

期望if判断条件里的两个promise 都同时执行完成

二、 初始代码案例

const formatDetail = async (fnArgsJsonParams: MapLogicType) => {if (fnArgsJsonParams?.targetFeatureName) {const resDetailData = await formatFeatureInfo(fnArgsJsonParams.targetFeatureName)targetParamsObj.value = { ...resDetailData }console.log('1111111111')$emit('targetFeatureCallback')}if (fnArgsJsonParams?.inputFeatureName) {inputResultObj.value = await formatFeatureInfo(fnArgsJsonParams.inputFeatureName)console.log('2222222222')}
}

可以使用Promise.all来确保两个if语句中的异步操作都执行完毕。以下是修改后的代码

const formatDetail = async (fnArgsJsonParams: MapLogicType) => {const promises = []if (fnArgsJsonParams?.targetFeatureName) {const targetFeaturePromise = formatFeatureInfo(fnArgsJsonParams.targetFeatureName).then(resDetailData => {targetParamsObj.value = { ...resDetailData }console.log('1111111111')$emit('targetFeatureCallback')})promises.push(targetFeaturePromise)}if (fnArgsJsonParams?.inputFeatureName) {const inputFeaturePromise = formatFeatureInfo(fnArgsJsonParams.inputFeatureName).then(resDetailData => {inputResultObj.value = resDetailDataconsole.log('2222222222')})promises.push(inputFeaturePromise)}await Promise.all(promises)
}

这样，Promise.all会等待所有的Promise都完成后再继续执行。