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user130285

Member since Jun 2021 • Last active Jul 2021
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    Hello Gordon,
    Thanks for teaching me. I will continue coding. :D

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    And, if I disabled NEOPIXEL and GRAPHICS in "board.py", how to calculate how many variables could be add to "variables" item, thanks.

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    Hi,
    I would like to help Espruino enable to do more things, so I try to add other functions to it.
    But when I coding, jsvGetArrayLength return 1 all the time.
    Could anyone teach me for this, thanks.

    Here is the test code(added in the "jswrap_crypto.c"):

    JsVar *jswrap_crypto_test(JsVar* arr){
      printf("%d",jsvIsArray(arr)?1:0);
      //1
    
      printf("%d",jsvGetLength(arr));
      //1
    
      printf("%d",jsvGetArrayLength(arr));
      //1
    
      printf("%d",jsvGetChildren(arr));
      //1
    
      return NULL;
    }
    
    /*JSON{
      "type" : "staticmethod",
      "class" : "crypto",
      "name" : "test",
      "generate" : "jswrap_crypto_test",
      "params" : [
        ["arr","JsVarArray","An array"]
      ],
      "return" : ["JsVar","A string"]
    }
      this is a test function
     */
    

    And also copied from "jsvArrayJoin", and the while will run once.

    JsVar *jswrap_crypto_test(JsVar* arr){
      JsVar *str = jsvNewFromEmptyString();
      if (!str) return 0; // out of memory
    
      JsvIterator it;
      jsvIteratorNew(&it, arr, JSIF_EVERY_ARRAY_ELEMENT);
      JsvStringIterator itdst;
      jsvStringIteratorNew(&itdst, str, 0);
    
      while (!jspIsInterrupted() && jsvIteratorHasElement(&it)) {
        JsVar *key = jsvIteratorGetKey(&it);
        if (jsvIsInt(key)) {
          // add the value
          //JsVar *value = jsvIteratorGetValue(&it);
          //if (value && !jsvIsNull(value)) {
            //JsVar *valueStr = jsvAsString(value);
            //if (valueStr) { // could be out of memory
              //jsvStringIteratorAppendString(&itdst, valueStr, 0, JSVAPPENDSTRINGVAR_MAXLENGTH);
              //jsvUnLock(valueStr);
            //}
          //}
          //jsvUnLock(value);
          printf("h\n");
        }
        jsvUnLock(key);
        jsvIteratorNext(&it);
      }
      jsvIteratorFree(&it);
      jsvStringIteratorFree(&itdst);
      return str;
    }
    
    /*JSON{
      "type" : "staticmethod",
      "class" : "crypto",
      "name" : "test",
      "generate" : "jswrap_crypto_test",
      "params" : [
        ["arr","JsVarArray","An array"]
      ],
      "return" : ["JsVar","A string"]
    }
      this is a test function
     */
    

    After make, directly run on the Ubuntu 18.04, the test code is:

    require("crypto").test(new Array(1,2,3));
    

    Or

    require("crypto").test([1,2,3]);
    
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