{"id":186,"date":"2019-11-11T23:09:11","date_gmt":"2019-11-11T15:09:11","guid":{"rendered":"https:\/\/blog.indeex.club\/?p=186"},"modified":"2020-06-20T23:33:44","modified_gmt":"2020-06-20T15:33:44","slug":"%e4%bb%a3%e7%a0%81%e6%98%af%e6%9c%80%e5%a5%bd%e7%9a%84%e6%b3%a8%e9%87%8a","status":"publish","type":"post","link":"https:\/\/blog.indeex.club\/index.php\/2019\/11\/11\/%e4%bb%a3%e7%a0%81%e6%98%af%e6%9c%80%e5%a5%bd%e7%9a%84%e6%b3%a8%e9%87%8a\/","title":{"rendered":"\u4ee3\u7801\u662f\u6700\u597d\u7684\u6ce8\u91ca"},"content":{"rendered":"<hr \/>\n<h3>ECMAScript\u6807\u51c6\u76f4\u63a5\u4f7f\u7528\u7684\u95ee\u9898<\/h3>\n<p>\u76f4\u63a5\u4f7f\u7528ECMAScript\u6807\u51c6\u6709\u5f88\u591a\u95ee\u9898\uff0c\u6bd4\u5982\u8457\u540d\u7684 <strong>Null References: The Billion Dollar Mistake<\/strong> \uff0c<em>const chocolate: Product = new Product(null, null, null);<\/em>\uff0c\u8fd9\u79cd\u5b8c\u5168\u6ca1\u6709\u610f\u4e49\u7684\u4ee3\u7801\u4ee5\u53ca\u9700\u8981\u8fd4\u56de\u7a7a\u5bf9\u8c61\u5374\u8fd4\u56de\u4e86null\u7b49\u7c7b\u4f3c\u7684\u95ee\u9898\u592a\u591a\uff0c\u8fd9\u91cc\u4e3e\u4e2a\u6817\u5b50\uff1a<\/p>\n<p>\u6b63\u5e38\u60c5\u51b5\u4e0b\uff0c\u4ee3\u7801\u662f\u4e0d\u9700\u8981\u6ce8\u91ca\u7684\uff0c\u4ee3\u7801\u7684\u547d\u540d\u3001\u6267\u884c\u7684\u65b9\u6cd5\u3001\u901a\u987a\u7684\u903b\u8f91\u5c31\u5df2\u7ecf\u662f\u6700\u597d\u7684\u6ce8\u91ca\u3002\u5982\u679c\u5f00\u53d1\u8005\u7684\u4ee3\u7801\u9700\u8981\u5927\u91cf\u7684\u6ce8\u91ca\u624d\u80fd\u8bfb\u61c2\uff0c\u8bf4\u660e\u8fd9\u79cd\u4ee3\u7801\u662f\u4e0d\u5408\u683c\u7684\uff0c\u800cECMAScript\u5f00\u53d1\u4eba\u5458\u5f88\u5c11\u6709\u80fd\u505a\u5230 <strong>\u4ee3\u7801\u5373\u6ce8\u91ca<\/strong> \u7684\u80fd\u529b\u6216\u8005\u5176\u4ed6\u539f\u56e0\uff08\u6bd4\u5982\u8d76\u5de5\u3001\u518d\u6bd4\u5982\u8d76\u5de5\uff0c\u7ee9\u6548\u5728\u54ea\u653e\u7740\u5462\ud83e\udd23\uff09\u6ca1\u6709\u505a\u5230\uff0c\u6700\u7ec8\u7684\u7ed3\u679c\u662f\u4ee3\u7801\u5f88\u96be\u61c2\uff0c\u6bd4\u5982\uff1a<\/p>\n<pre><code class=\"language-javascript line-numbers\">if(a &amp;&amp; b &amp;&amp; c &gt; 1 &amp;&amp; d == 2 || !e || !f || h(g =&gt; g === 3)){\n    \/\/do something\n}\n\/\/...\n(a &amp;&amp; b &amp;&amp; c &amp;&amp; d &gt;= 0 || e &lt;= 100) ? (f &gt; 1 &amp;&amp; g &lt;= 10 ? a : b) : c\n<\/code><\/pre>\n<p>\u8fd9\u79cd\u4ee3\u7801\uff0c\u8d85\u7ea7\u70b9\u70b9\u70b9\u3002\u3002\u3002<\/p>\n<p>\u8fd9\u79cd\u4ee3\u7801\u662f\u5f88\u7b80\u6d01\uff0c\u5927\u773c\u770b\u53bb\u662f\u5f88\u9ad8\u7aef\u5927\u6c14\u4e0a\u6863\u6b21\uff0c\u4f46\u662f\u3002\u3002\u3002\u3002<\/p>\n<ol>\n<li><strong>\u4ee3\u7801\u5f88\u96be\u8bfb<\/strong><\/li>\n<li><strong>\u8bfb\u4e86\u5f88\u96be\u61c2<\/strong><\/li>\n<li><strong>\u61c2\u4e86\u5f88\u96be\u6539<\/strong><\/li>\n<li><strong>\u6539\u4e86\u5f88\u96be\u6d4b\u8bd5<\/strong><\/li>\n<li><strong>\u6d4b\u8bd5\u53d1\u73b0\u95ee\u9898\u82b1\u8d39\u592a\u591a\u65f6\u95f4\u4fee\u590d<\/strong><\/li>\n<\/ol>\n<h3>\u6743\u9650\u9a8c\u8bc1\u6848\u4f8b<\/h3>\n<p>\u62ff\u540e\u53f0\u7ba1\u7406\u7cfb\u7edf\u7ecf\u5e38\u505a\u7684\u6743\u9650\u6765\u8bf4\uff0c\u5224\u65ad\u7528\u6237\u6743\u9650\u4e00\u822c\u4f1a\u8fd9\u4e48\u5199\uff1a<\/p>\n<pre><code class=\"language-javascript line-numbers\">if(user.role === \"admin\" &amp;&amp; user.isActive &amp;&amp; user.permissions.some =&gt; p === \"edit\"){\n    \/\/do something\n}\n<\/code><\/pre>\n<p>\u90a3\u4e48\u53ef\u4ee5\u8fd9\u4e48\u5199\uff1a<\/p>\n<pre><code class=\"language-javascript line-numbers\">const isAdmin: boolean = user.role === \"admin\"; \nconst userIsActive: boolean = user.active; \nconst userCanEdit: boolean = user.permissions.some(p =&gt; p === \"edit\");\nconst activeAdminCanEdit: boolean = isAdmin &amp;&amp; userIsActive &amp;&amp; userCanEdit;\nif (activeAdminCanEdit) {\n    \/\/do something\n}\n<\/code><\/pre>\n<p>\u4f46\u662f\u8fd9\u4e48\u5199\u597d\u50cf\u4e5f\u6709\u95ee\u9898\uff0c\u56e0\u4e3a\u76f4\u63a5\u9650\u5b9a\u4e86 <em>admin<\/em> \uff0c\u5982\u679c\u53ea\u662f\u4e2a\u666e\u901a\u6e38\u5ba2\u5462\uff1f<\/p>\n<pre><code class=\"language-javascript line-numbers\">class User {\n    isAdmin(): boolean {\n    }\n    isActive(): boolean {\n    }\n    canEdit(): boolean {\n    }\n    isActiveAdmin(): boolean {\n    }\n    isActiveAdminThatCanEdit(): boolean {\n    }\n}\n<\/code><\/pre>\n<p>\u5982\u679c\u4e1a\u52a1\u590d\u6742\uff0c\u4e5f\u53ef\u4ee5\u5355\u72ec\u628a\u6bcf\u4e2a\u65b9\u6cd5\u62c6\u51fa\u6765\uff1a<\/p>\n<pre><code class=\"language-javascript line-numbers\">class UserIsActiveAdmin {\n\n    private _user: User;\n\n    constructor(user: User) {\n        this._user = user;\n    }\n\n    public invoke(): boolean {\n        return this._user.isAdmin() &amp;&amp; this._user.isActive();\n    }\n}\n<\/code><\/pre>\n<p>\u7528\u7684\u65f6\u5019\u53ea\u9700\u8981\uff1a<\/p>\n<pre><code class=\"language-javascript line-numbers\">const activeAdminCanEdit: boolean = new UserIsActiveAdmin(user).invoke() &amp;&amp; user.canEdit();\nif (activeAdminCanEdit) {\n}\n<\/code><\/pre>\n<p>\u8fd9\u4e2a\u65f6\u5019\uff0c\u53d1\u73b0\u4f3c\u4e4e\u6709\u4ec0\u4e48\u4e1c\u897f\u662f\u901a\u7528\u7684\ud83e\udd17\u3002<\/p>\n<p>\u4e3a\u4e86\u8ba9\u903b\u8f91\u66f4\u6e05\u6670\uff0c\u505a\u4e0b\u9762\u7684\u63a5\u53e3\u7ea6\u5b9a\uff1a<\/p>\n<pre><code class=\"language-javascript line-numbers\">interface IPipeableCondition {\n    check(): boolean;\n}\n<\/code><\/pre>\n<p>\u7136\u540e\uff0c\u8ba9\u5176\u4ed6\u7684Class\u5b9e\u73b0\u8fd9\u4e2a\u63a5\u53e3\uff1a<\/p>\n<pre><code class=\"language-javascript line-numbers\">IPipeableCondition { \n    private _user: User;\n    constructor(user: User) {\n        this._user = user;\n    } \n    public check(): boolean {\n        return this._user.isAdmin() &amp;&amp; this._user.isActive();\n    }\n}\n<\/code><\/pre>\n<p>\u5176\u4ed6\u7684\u4e5f\u5b9e\u73b0\u8fd9\u4e2a\u63a5\u53e3\uff1a<\/p>\n<pre><code class=\"language-javascript line-numbers\">const conditions: IPipeableCondition[] = [\n    new UserIsActiveAdmin(user),\n    new UserCanEdit(user),\n    new UserIsNotBlacklisted(user),\n    new UserLivesInAvailableLocation(user)\n];\nconst valid = conditions.every(p =&gt; p.check());\nif (valid) {\n}\n<\/code><\/pre>\n<p>\u5f53\u7136\uff0c\u867d\u7136\u4e0d\u63a8\u8350\u8fd9\u4e48\u505a\uff0c\u4f46\u81f3\u5c11\u6bd4\u4e4b\u524d\u7684\u597d\u591a\u4e86\u3002<\/p>\n<h3>\u8f93\u5165\u9a8c\u8bc1\u6848\u4f8b<\/h3>\n<p>\u5728\u767b\u5f55\u6ce8\u518c\u5f00\u53d1\u4e2d\uff0c\u4f1a\u7ecf\u5e38\u5f00\u53d1\u624b\u673a\u53f7\u7801\u9a8c\u8bc1\u3001\u90ae\u7bb1\u9a8c\u8bc1\u7b49\u529f\u80fd\uff0c\u6bd4\u5982\u5904\u7406\u90ae\u7bb1:<\/p>\n<pre><code class=\"language-javascript line-numbers\">const email: string = user.email;\nif (email !== null &amp;&amp; email !== \"\") {\n    \/\/do something\n}\n<\/code><\/pre>\n<p>\u6bd4\u5982\u5f53\u8981\u7535\u5b50\u90ae\u4ef6\u9700\u8981\u8fc7\u6ee4\u5783\u573e\u7c7b\u90ae\u4ef6\u57df\u540d\u65f6\uff0c\u5f53\u8981\u533a\u5206\u5185\u7f51\u5916\u7f51\u65f6\uff1a<\/p>\n<pre><code class=\"language-javascript line-numbers\">const domain: string = email.replace(\/.*@\/, \"\");\nconst userName = email.replace(domain, \"\");\nconst sendInternal: boolean = domain === \"\u5185\u7f51.\u5916\u7f51\";\nconst sendSpam: boolean = domain === \"\u5783\u573e\u90ae\u4ef6.\u7f51\u5740\"; \nif (sendInternal) {\n    if (userName === \"info\") {\n        mailer.sendToCustomerServiceTeam(email, message);\n    } else {\n        mailer.mailToInternalServer(email, message);\n    }\n} else {\n    throw \"\u4e0d\u80fd\u53d1\u9001\u3002\";\n}\nif (sendSpam) {\n}\n<\/code><\/pre>\n<p>\u4ee5\u5185\u5916\u7f51\u90ae\u4ef6\u4e3a\u4f8b\uff0c\u7a0d\u5fae\u6574\u7406\u4e00\u4e0b\uff1a<\/p>\n<pre><code class=\"language-javascript line-numbers\">const domain: string = email.replace(\/.*@\/, \"\");\nconst userName = email.replace(domain, \"\");\nconst sendInternal: boolean = domain === \"\u5185\u7f51.\u5916\u7f51\";\nif (sendExternal) {\n    throw \"\u4e0d\u80fd\u53d1\u9001\u3002\";\n}\nif (userName === \"info\") {\n    mailer.sendToCustomerServiceTeam(email, message);\n    return;\n}\nmailer.mailToInternalServer(email, message);\n<\/code><\/pre>\n<p>\u8fd9\u91cc\u903b\u8f91\u662f\u6709\u5173\u8054\u7684\uff0c\u628a\u90ae\u4ef6\u7684\u5730\u5740\u5355\u72ec\u72ec\u7acb\u51fa\u6765\u5904\u7406\uff1a<\/p>\n<pre><code class=\"language-javascript line-numbers\">class EmailAddress {\n    private _value: string;\n    private _domain: string;\n    private _userName: string;\n    constructor(value: string) {\n        this._value = value;\n        this._domain: string = value.replace(\/.*@\/, \"\");\n        this._userName = value.replace(domain, \"\");\n    }\n    isExternal(): boolean {\n        return this._domain !== \"\u5185\u7f51.\u5916\u7f51\";\n    }\n    isInfoUser(): boolean {\n        return this._userName === \"info\";\n    }\n    value() {\n        return this._value;\n    }\n}\n<\/code><\/pre>\n<h3>\u8eab\u4efd\u9a8c\u8bc1\u6848\u4f8b<\/h3>\n<p>\u5728\u6ce8\u518c\u7528\u6237\u4e2d\uff0c\u4f1a\u6709\u5927\u91cf\u957f\u671f\u4e0d\u4f7f\u7528\u7684\u8d26\u6237\uff0c\u9700\u8981\u5bf9\u8d26\u6237\u9650\u5236\uff0c\u6bd4\u5982\u767e\u5ea6\u4e91\u5c062019\u5e74\u5e74\u5e95\u524d\u957f\u671f\u4e0d\u767b\u9646\u7684\u767e\u5ea6\u4e91\u7684\u8d26\u6237\u4e91\u76d8\u5bb9\u91cf\u964d\u81f3\u75312T\u964d\u81f3100G;\u817e\u8bafQQ\u3001\u5fae\u4fe1\u5c06\u957f\u671f\u4e0d\u767b\u9646\u7684\u7528\u6237\u6ce8\u9500\uff0c\u76f4\u63a5\u5220\u9664\u6240\u6709\u8d26\u6237\u6570\u636e\uff1b\u56fd\u5916\u7f51\u7ad9\u4e00\u822c\u662f\u9501\u5b9a\u8d26\u6237\uff0c\u89e3\u9501\u540e\u624d\u80fd\u6b63\u5e38\u4f7f\u7528\u7b49\uff0c\u5bf9\u4e8e\u4e00\u822c\u9700\u6c42\u6765\u8bf4\u53ea\u9700\u8981\u7b80\u5355\u7684\u9a8c\u8bc1\uff1a<\/p>\n<pre><code class=\"language-javascript line-numbers\">const isAuthenticated: boolean = await userIsAuthenticated(username, password);\nif (isAuthenticated) {\n    redirectToUserDashboard();\n} else {\n    returnErrorOnLoginPage(\"\u9a8c\u8bc1\u65e0\u6548\");\n}\n<\/code><\/pre>\n<p>\u5982\u679c\u73b0\u5728\u9700\u8981\u957f\u671f\u4e0d\u767b\u9646\u7684\u8d26\u6237\u4e0d\u80fd\u767b\u5f55\uff0c\u9700\u8981\u5148\u89e3\u9664\u9501\u5b9a\uff0c\u5f88\u591a\u4eba\u559c\u6b22\u8fd9\u4e48\u5199\uff1a<\/p>\n<pre><code class=\"language-javascript line-numbers\">const user: User = await userIsAuthenticated(username, password);\nconst isAuthenticated: boolean = user !== null;\nif (isAuthenticated) {\n    if (user.isActive) {\n        redirectToUserDashboard();\n    } else {\n        returnErrorOnLoginPage(\"\u7528\u6237\u957f\u671f\u6ca1\u6709\u767b\u5f55\");\n    }\n} else {\n    returnErrorOnLoginPage(\"\u9a8c\u8bc1\u65e0\u6548\");\n}\n<\/code><\/pre>\n<p>\u8fd9\u4e48\u5199\u5f53\u7136\u662f\u80fd\u5b9e\u73b0\u4e1a\u52a1\u7684\uff0c\u4f46\u662f\u5efa\u8bae\u8fd9\u4e48\u5199\uff1a<\/p>\n<pre><code class=\"language-javascript line-numbers\">const user: User = await userIsAuthenticated(username, password);\n\nif (!user.isAuthenticated()) {\n    returnErrorOnLoginPage(\"\u9a8c\u8bc1\u65e0\u6548\");\n}\nif (!user.isActive()) {\n    returnErrorOnLoginPage(\"\u7528\u6237\u957f\u671f\u6ca1\u6709\u767b\u5f55\");\n}\nredirectToUserDashboard();\n<\/code><\/pre>\n<p>\u4f46\u5b9e\u9645\u4e0a\uff0c\u4f1a\u6709\u5f88\u591a\u9a8c\u8bc1\u3002\u7531\u4e8e\uff0c\u4e0d\u6e05\u695a\u4f1a\u6709\u591a\u5c11\uff0c\u9700\u8981\u505a\u4e00\u4e2a\u679a\u4e3e\uff1a<\/p>\n<pre><code class=\"language-javascript line-numbers\">enum AuthenticationResult {\n    InvalidCredentials,\n    UserIsNotActive,\n    HasExistingSession,\n    IsLockedOut,\n    IsFirstLogin,\n    Successful\n}\n<\/code><\/pre>\n<p>\u8fd9\u6837\u5c31\u80fd\u786e\u4fdd\u505a\u7684\u9a8c\u8bc1\u662f\u6709\u610f\u4e49\u7684\uff1a<\/p>\n<pre><code class=\"language-javascript line-numbers\">const result: AuthenticationResult = await tryAuthenticateUser(username, password);\nif (result === AuthenticationResult.InvalidCredentials) {\n    returnErrorOnLoginPage(\"\u9a8c\u8bc1\u65e0\u6548\");\n}\nif (result === AuthenticationResult.UserIsNotActive) {\n    returnErrorOnLoginPage(\"\u7528\u6237\u957f\u671f\u6ca1\u6709\u767b\u5f55\");\n}\nif (result === AuthenticationResult.HasExistingSession) {\n    redirectToHomePage();\n}\nif (result === AuthenticationResult.IsLockedOut) {\n    redirectToUserLockedOutPage();\n}\nif (result === AuthenticationResult.IsFirstLogin) {\n    redirectToWelcomePage();\n}\nredirectToUserDashboard();\n<\/code><\/pre>\n<p>\u518d\u505a\u4e00\u4e9b\u7b80\u5316\uff1a<\/p>\n<pre><code class=\"language-javascript line-numbers\">const strategies: any = [];\nstrategies[AuthenticationResult.InvalidCredentials] = () =&gt; returnErrorOnLoginPage(\"\u9a8c\u8bc1\u65e0\u6548\");\nstrategies[AuthenticationResult.UserIsNotActive] = () =&gt; returnErrorOnLoginPage(\"\u7528\u6237\u957f\u671f\u6ca1\u6709\u767b\u5f55\");\nstrategies[AuthenticationResult.HasExistingSession] = () =&gt; redirectToHomePage();\nstrategies[AuthenticationResult.IsLockedOut] = () =&gt; redirectToUserLockedOutPage();\nstrategies[AuthenticationResult.IsFirstLogin] = () =&gt; redirectToWelcomePage();\nstrategies[AuthenticationResult.Successful] = () =&gt; redirectToUserDashboard();\nstrategies[result]();\n<\/code><\/pre>\n<p>\u4f46\u662f\uff0c\u670d\u52a1\u5668\u8fd4\u56de\u7684\u53c2\u6570\u4e0d\u53ef\u80fd\u53ea\u6709\u8fd9\u4e9b\uff0c\u5728\u8c03\u7528\u65b9\u6cd5\u7684\u65f6\u5019\u5c31\u4f1a\u4f20\u9012\u5f88\u591a\u53c2\u6570\uff0c\u53ef\u4ee5\u8fd9\u6837\uff1a<\/p>\n<pre><code class=\"language-javascript line-numbers\">private getUsers(includeInactive: boolean = false, filterText: string = null, orderByName: boolean = false, forHireDate: Date = null) : User[] {\n} \npublic getActiveUsers() : User[] {\n    return getUsers(false);\n} \npublic getInactiveUsers() : User[] {\n    return getUsers(true);\n} \npublic getActiveUsersByName(filter: string) : User[] {\n    return getUsers(false, filter);\n} \npublic getActiveUsersOrderedAndFilteredByName(filter: string) : User[] {\n    return getUsers(false, filter, true);\n} \npublic getActiveUsersForHireDate(hireDate: Date) : User[] {\n    return getUsers(false, null, false, hireDate);\n}\n<\/code><\/pre>\n<p>\u4f46\u662f\uff0c\u968f\u7740\u9879\u76ee\u7684\u529f\u80fd\u9010\u6b65\u589e\u52a0\uff0c\u9700\u8981\u9a8c\u8bc1\u7684\u4e5f\u8d8a\u6765\u8d8a\u591a\uff0c\u4e8e\u662f\uff0c<em>if-else<\/em> \u4e5f\u8d8a\u6765\u8d8a\u957f\uff0c\u6bd4\u5982\u518d\u52a0\u4e2a\u8ba2\u5355\u7684\u9a8c\u8bc1\uff1a<\/p>\n<pre><code class=\"language-javascript line-numbers\">public async processOrder(orderId: string): Promise &lt; ValidationMessage &gt; {\n    const user = await this.getUserFromSession();\n    const userId = user.id;\n    const userRole = user.role;\n    const userAllowed: boolean = await this.userCanModifyOrder(userId, userRole);\n    if(!userAllowed) {\n        return new ValidationMessage(\"\u6ca1\u6709\u6743\u9650\");\n    }\n\nlet saveAttempts = 1;\n    while(saveAttempts &gt; 3) {\n        const order = await this.getOrderById(orderId);\n        if (order.isActive()) {\n            const status: OrderStatus = order.getStatus();\n            if (status == OrderStatus.Pending) {\n            } else if (status == OrderStatus.Shipped) {\n            } else if (status == OrderStatus.Cancelled) {\n            } else if (status == OrderStatus.Returned) {\n            }\n        } else {\n            const archiveOnDate: Date = await this.getOrderArchiveOnDate(orderId);\n            if (order.getOrderedOnDate() &gt; archiveOnDate) {\n            }\n        }\n        const result: OrderUpdateResult = await this.tryUpdateOrder(order);\n        if (result == OrderUpdateResult.Successful) {\n            return new ValidationMessage(\"\u8ba2\u5355\u5df2\u66f4\u65b0\");\n        } else if (result == OrderUpdateResult.OrderVersionOutOfSync) {\n            return new ValidationMessage(\"\u8ba2\u5355\u5df2\u8fc7\u671f\uff0c\u8bf7\u91cd\u8bd5\");\n        } else if (result == OrderUpdateResult.NetworkError) {\n            saveAttempts++;\n        }\n    }\n}\n<\/code><\/pre>\n<p>\u4e8e\u662f\uff0c\u4ee3\u7801\u53d8\u6210\u4e86\u8fd9\u6837\uff1a<\/p>\n<pre><code class=\"language-javascript line-numbers\">const status: OrderStatus = order.getStatus();\nif (status == OrderStatus.Pending) {\n    \/\/do \u4e86 something\n} else if (status == OrderStatus.Shipped) {\n    \/\/do \u4e86 something\n} else if (status == OrderStatus.Cancelled) {\n    \/\/do \u4e86 something\n} else if (status == OrderStatus.Returned) {\n    \/\/do \u4e86 something\n}\n<\/code><\/pre>\n<p>\u8fd9\u79cd\u60c5\u51b5\uff0c\u5c31\u7528 <strong>\u7b56\u7565\u6a21\u5f0f<\/strong> \u5427\uff1a<\/p>\n<pre><code class=\"language-javascript line-numbers\">enum OrderStatus {\n    Pending = 0,\n    Shipped = 1,\n    Cancelled = 2,\n    Returned = 3\n}\n\nconst strategies: Function[] = [];\nstrategies[OrderStatus.Pending] = this.processPendingOrder;\nstrategies[OrderStatus.Shipped] = this.processShippedOrder;\nstrategies[OrderStatus.Cancelled] = this.processCancelledOrder;\nstrategies[OrderStatus.Returned] = this.processReturnedOrder;\nstrategies[order.getStatus()]();\n<\/code><\/pre>\n<p>code enjoy!\ud83e\udd29\ud83e\udd29\ud83e\udd29<\/p>\n<p>\u4f5c\u8005\uff1aindeex<\/p>\n<p>\u94fe\u63a5\uff1a<a class=\"wp-editor-md-post-content-link\" href=\"https:\/\/indeex.cc\/\">https:\/\/indeex.cc<\/a><\/p>\n<p>\u8457\u4f5c\u6743\u5f52\u4f5c\u8005\u6240\u6709\u3002\u5546\u4e1a\u8f6c\u8f7d\u8bf7\u8054\u7cfb\u4f5c\u8005\u83b7\u5f97\u6388\u6743\uff0c\u975e\u5546\u4e1a\u8f6c\u8f7d\u8bf7\u6ce8\u660e\u51fa\u5904\u3002<\/p>\n<hr \/>\n","protected":false},"excerpt":{"rendered":"<p>ECMAScript\u6807\u51c6\u76f4\u63a5\u4f7f\u7528\u7684\u95ee\u9898 \u76f4\u63a5\u4f7f\u7528ECMAScript\u6807\u51c6\u6709\u5f88\u591a\u95ee\u9898\uff0c\u6bd4\u5982\u8457\u540d\u7684 Nu<a href=\"https:\/\/blog.indeex.club\/index.php\/2019\/11\/11\/%e4%bb%a3%e7%a0%81%e6%98%af%e6%9c%80%e5%a5%bd%e7%9a%84%e6%b3%a8%e9%87%8a\/\" class=\"read-more\">Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[3],"tags":[4],"_links":{"self":[{"href":"https:\/\/blog.indeex.club\/index.php\/wp-json\/wp\/v2\/posts\/186"}],"collection":[{"href":"https:\/\/blog.indeex.club\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.indeex.club\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.indeex.club\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.indeex.club\/index.php\/wp-json\/wp\/v2\/comments?post=186"}],"version-history":[{"count":1,"href":"https:\/\/blog.indeex.club\/index.php\/wp-json\/wp\/v2\/posts\/186\/revisions"}],"predecessor-version":[{"id":189,"href":"https:\/\/blog.indeex.club\/index.php\/wp-json\/wp\/v2\/posts\/186\/revisions\/189"}],"wp:attachment":[{"href":"https:\/\/blog.indeex.club\/index.php\/wp-json\/wp\/v2\/media?parent=186"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.indeex.club\/index.php\/wp-json\/wp\/v2\/categories?post=186"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.indeex.club\/index.php\/wp-json\/wp\/v2\/tags?post=186"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}