夜间全局变量。问题为node.js的for循环 [英] Global variable in nightwatch. Issue in for loop for node.js

问题描述

我目前正在使用node + nightwatch + selenium进行自动化。
我遇到了一个场景：

我在Nightwatch中定义了一个数组作为全局数组：

Dev.js

 'checkforLink'：{
 link1：Some Xpath 1，
 link1 ：Some Xpath 2，
 link1：Some Xpath 3，
 link1：Some Xpath 4
}，
  

在自定义命令中的自定义js脚本中，我为循环执行来从全局中获取此链接变量：



  exports.command = function（callback）{
 browser = this; 
 
 var data = browser.globals; 
 
 console.log（Before all loop）; 
 
（data.checkforLink中的var menu_link）{
 linkss1 = data.checkforLink.link1; //返回`Some Xpath 1` 
 reqvar = data.mainMenuLink.menu_link; //尽管menu_link的值为link1，但reqvar未定义
 browser.click（'######'）//单击路径
} 
 
 return this ; 
}; 
  




解决方案

data.checkforLink中的var menu_link），变量'menu_link'将是一个字符串。

要从一个带有字符串的对象获取属性，使用'object [string]'语法。尝试 data.mainMenuLink [menu_link];

只要data.mainMenuLink.link1存在，就应该有效。

我在你的问题中注意到所有的属性都有值'link1'。希望它们在代码中是不同的属性名称。

I am currently working with node + nightwatch + selenium for automation. I came across a scenario:

I have defined an array as Global array in nightwatch:

Dev.js

'checkforLink':{
    link1:"Some Xpath 1",
    link1:"Some Xpath 2",
    link1:"Some Xpath 3",
    link1:"Some Xpath 4"
},

In my custom js script in custom-commands, I am doing a for loop to fetch this links from global variable:

exports.command = function(callback) {
  browser = this;

  var data = browser.globals;

  console.log("Before all loop");

  for(var menu_link in data.checkforLink) {
    linkss1 = data.checkforLink.link1; // returns `Some Xpath 1`
    reqvar = data.mainMenuLink.menu_link; // Even though menu_link have value as link1, reqvar is undefined
    browser.click('######') // Click the path
  }

  return this;
};

解决方案

When you run for(var menu_link in data.checkforLink), the variable 'menu_link' will be a string.

To get the property from an object with a string use 'object[string]' syntax. Try data.mainMenuLink[menu_link];

This should work as long as data.mainMenuLink.link1 exists.

I noticed in your question all of the properties have the value 'link1'. Hopefully they are different property names in your code.

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