小编ak_*_*agi的帖子

我们如何在快速忽略的情况下比较两个字符串？例如:

var a = "Cash"
var b = "cash"

如果我们比较var a&var b,是否有任何方法会返回true

我需要读取存储在 WKWbview 本地存储中的值。我尝试使用下面的代码但得到零。我能够在本地存储中写入值，但在从中读取值时遇到困难。

  let script = "localStorage.getItem('token')"
        wkWebView.evaluateJavaScript(script) { (token, error) in
            print("token = \(token)")
        }

WKWebView 初始化代码：

    // 1
    let accessToken = UserDefaults.standard.value(forKey: "token") as? String
    // 2
    let refreshToken = UserDefaults.standard.value(forKey: "RefreshToken") as? String
    // 3
    let configuration = WKWebViewConfiguration()
    // 4
    let contentController = WKUserContentController()
    let accessTokenScript = "javascript: localStorage.setItem('token', '\(accessToken!)')"
    // 5
    let userAccessTokenScript = WKUserScript(source: accessTokenScript, injectionTime: WKUserScriptInjectionTime.atDocumentStart, forMainFrameOnly: false)

    // 6
    contentController.addUserScript(userAccessTokenScript)
    configuration.userContentController = contentController
    self.wkWebView = WKWebView(frame: controller.view.bounds, configuration: configuration)