Javascript 某些方法嵌套在 For 中

Question

下面的代码我试图查看其中一个 CrmRoles 是否在 rolesToVerify 列表中，但是当我遍历它时，我一直为 roleToVerify 获取“undefined”。

const rolesToVerify = ["System Administrator", "Payroll"]

function userHasOneOrMoreRoles(currentUserRoles: CrmRole[], rolesToVerify: String[]) {
    for (let currentUserRole of currentUserRoles) {
        return rolesToVerify.some(roleToVerify =>
           currentUserRole.Name === roleToVerify);
    }
    return false;
    }

Answer 1

你在一个循环中返回，独立于任何条件或任何东西。没办法，您的循环会通过第一次迭代。

//And you can shorten
rolesToVerify.some(roleToVerify => currentUserRole.Name === roleToVerify);
//to
rolesToVerify.includes(currentUserRole.Name);

所以要么

function userHasOneOrMoreRoles(currentUserRoles: CrmRole[], rolesToVerify: String[]) {
    for (let currentUserRole of currentUserRoles) {
        if(rolesToVerify.includes(currentUserRole.Name))
            return true;
    }
    return false;
}

或

function userHasOneOrMoreRoles(currentUserRoles: CrmRole[], rolesToVerify: String[]) {
    return currentUserRoles.some(currentUserRole => rolesToVerify.includes(currentUserRole.Name));
}