nightwatchJS ---element用法

.element()

Search for an element on the page, starting from the document root. The located element will be returned as a WebElement JSON object.
First argument to be passed is the locator strategy, which is detailed on the WebDriver docs.

Parameters:

Name	Type	description
using	string	The locator strategy to use.
value	string	The search target.
callback	function	Callback function which is called with the result value.

Usage:

module.exports = {
 'demo Test' : function(browser) {
    browser.element('css selector', 'body', function(res) {
      console.log(res)
    });
  }
};

　　

示例：

 client.element('css selector','#file_grid > tbody > tr > td > i.publish_file.click_icon',function(result){

            if(result.status != -1)
            {
            //element exist
            console.log(result);
            client.elementIdClick(result.value.ELEMENT);

            }
            else
            {
            //element not exist
                console.log("no appropriate media file to publish ");
            }

        })