if contains certain text, then run jquery

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执笔经年
执笔经年 2021-01-04 04:23

I need to run a jquery only if the bold element contains particular text. What am I doing wrong?

 

        
3条回答
  •  一向
    一向 (楼主)
    2021-01-04 04:50

    Besides using single quotes inside single quotes, which breaks the string, you're using a jQuery selector inside an if statement. This selector only filters your b tags to those which contain "Choose a sub category"; and then returns a list of those elements. It does not return a boolean. Instead, use the .contains() method, like so:

    if($("b").contains("Choose a sub category")) {
       // do stuff 
    }
    

    You can read more here

    EDIT: since the .contains() method appears to be deprecated, here's a pure JS solution:

    var el = document.getElementById("yourTagId") // or something like document.getElementsByTagName("b")[0] if you don't want to add an ID.
    if (el.innerHTML.indexOf("Choose a sub category") !== -1) {
        // do stuff
    }
    

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