async/awaitで非同期処理の順次実行する方法＠JavaScript

var func1 = () => {
    return new Promise((resolve, reject) => {
        setTimeout(() => {
            console.log("func1");
            resolve();
        }, Math.random() * 1000);
    });
}
 
var func2 = () => {
    return new Promise((resolve, reject) => {
        setTimeout(() => {
            console.log("func2");
            resolve();
        }, Math.random() * 1000);
    });
}
 
var func3 = () => {
    return new Promise((resolve, reject) => {
        setTimeout(() => {
            console.log("func3");
            resolve();
        }, Math.random() * 1000);
    });
}
 
async function exec() {
    try {
        await func1();
        await func2();
        await func3();
    } catch (e) {
        console.log(e);
    }
}
exec();