Question

这是我的代码：

Use javascript executor :   
javascript executor helps to click small and hidden elements.
 element: the xpath to be executed. 

    public void javascriptclick(String element)
    { 
        WebElement webElement=driver.findElement(By.xpath(element));
        JavascriptExecutor js = (JavascriptExecutor) driver;

        js.executeScript("arguments[0].click();",webElement);   
        System.out.println("javascriptclick"+" "+ element);
    }

当我在Chrome中运行代码时，控制台写道：

<!DOCTYPE html>
<html lang="en">
<head>
    <script src="js/angular.js"></script>
    <script src="js/Chart.min.js"></script>
    <script src="js/angular-chart.js"></script>
</head>
<body>

<div ng-app="app">
    <div ng-controller="BarCtrl">
        <div ng-repeat="id in ids">
            <canvas id="bar" class="chart chart-bar"
                    chart-data="{{id}}" chart-labels="labels"> chart-series="series"
            </canvas>

        </div>
    </div>
</div>

<script type="application/javascript">

    angular.module("app", ["chart.js"]).controller("BarCtrl", function ($scope) {
        $scope.labels = ['2008', '2009', '2010', '2011', '2012'];
        $scope.series = ['Series A', 'Series B'];

        $scope.data = [];
        $scope.data.push( [
            [65, 59, 80, 81, 56, 55, 40],
            [28, 48, 40, 19, 86, 27, 90]
        ]);

        $scope.ids = ["data[0]"];
    });

</script>
</body>
</html>

[$parse:syntax] Syntax Error: Token '{' invalid key at column 2 of the expression [{{id}}] starting at [{id}}].似乎没问题，但<input value="{{id}}">导致语法错误。知道为什么会这样吗？

Answer 1

chart-data不应该有表达式，它应该有一个范围变量绑定。

<canvas id="bar" class="chart chart-bar" chart-data="data" chart-labels="labels" chart-series="series">
</canvas>

{{ ... }}表示您正在评估表达式，例如{{1+1}}或打印（不通过）变量{{id}}。但是，要传递变量，在将其分配给属性时，不应将其包装在表达式中。

语法错误：从[{id}}]开始，表达式[{{id}}]的第2列的令牌'{'无效键？

1 个答案: