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    MMM-Stock Cannot read property 'toLowerCase'

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    • B Offline
      brendan_c23
      last edited by

      Stock module used to run just fine, now I am given this error when pulling up ‘npm start dev’ can anyone offer any guidance on how to fix this?

      S 1 Reply Last reply Reply Quote 0
      • S Offline
        sdetweil @brendan_c23
        last edited by sdetweil

        @brendan_c23 usually this happens when a module retrieves data and EXPECTS success, but never really checks, or the data changes format.

        this specific error is related to a string (“abcdefgh”) and wanting to convert all the chars to lowercase before comapring… BUT the string didn’t get created…

        in json data its like this
        if(json_data.key.toLowerCase() ==‘test’)
        but the item changed name to Key, so its undefined.toLowercase()…

        or key is not a string anymore,
        but an object {}

        net, the code has to change

        Sam

        How to add modules

        learning how to use browser developers window for css changes

        B 1 Reply Last reply Reply Quote 1
        • B Offline
          brendan_c23 @sdetweil
          last edited by

          @sdetweil Could you help guide me on how to fix the code? Would you like me to post the .js file?

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          • S Offline
            sdetweil @brendan_c23
            last edited by

            @brendan_c23 which module is that

            this one works fine (with the example stocks)

            https://github.com/hakanmhmd/MMM-Stock

            Sam

            How to add modules

            learning how to use browser developers window for css changes

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            • S Offline
              sdetweil @brendan_c23
              last edited by sdetweil

              @brendan_c23 ok, I see the error on refresh…

              change line 90 from

              	if(this.config.currency.toLowerCase() != "usd"){
              

              to

              	if(that.config.currency.toLowerCase() != "usd"){
              

              Sam

              How to add modules

              learning how to use browser developers window for css changes

              B 1 Reply Last reply Reply Quote 1
              • B Offline
                brendan_c23 @sdetweil
                last edited by sdetweil

                @sdetweil Hey I tried that, now it says Cannot read property ‘toLowerCase’ of undefined at MMM-stock.js:90
                Any other suggestions?

                u are only changing the word this to the word that on that one line

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                • B Offline
                  brendan_c23 @brendan_c23
                  last edited by

                  @brendan_c23 Uncaught TypeError: Cannot read property ‘toLowerCase’ of undefined

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                  • S Offline
                    sdetweil @brendan_c23
                    last edited by

                    @brendan_c23 you are only changing one word
                    ‘this’ to the word ‘that’ on one line

                    Sam

                    How to add modules

                    learning how to use browser developers window for css changes

                    B 1 Reply Last reply Reply Quote 0
                    • B Offline
                      brendan_c23 @sdetweil
                      last edited by

                      @sdetweil Yes I made that change, but the error was still coming up for me

                      S 1 Reply Last reply Reply Quote 0
                      • S Offline
                        sdetweil @brendan_c23
                        last edited by

                        @brendan_c23 show me those 10 lines

                        Sam

                        How to add modules

                        learning how to use browser developers window for css changes

                        B 1 Reply Last reply Reply Quote 0
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