arrow function does not work

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•

Mrbbp

if you try this simple example

let p = 0;

function onInit() {
  setInterval(() => {
    //allume la led 50ms
    digitalPulse(LED2, 1, 20);
    console.log((Math.sin(p)+1)/2);//, (Math.cos(p)+1)/2, tab.BUTTONS.NONE);
    p += 0.02;
  },
  50);
}
USB.setConsole();

and upload, i receive :

Uncaught SyntaxError: Got ';' expected ','
at line 1 col 79
...((Math.sin(p)+1)/2),p+=0.02;,50);

in function called from system

•

Robin in reply to @Mrbbp
Thr 2020.03.05

Hi @@Mrbbp I just tried the snippet in post #1, commenting out L12, running on a MDBT42Q breakout board and get the following:
```
 2v03 (c) 2018 G.Williams
Espruino is Open Source. Our work is supported
only by sales of official boards and donations:
http://espruino.com/Donate
>
>onInit()
=undefined
0.5
0.50999933334
0.51999466709
0.52998200323
0.53995734698
0.54991670832
0.55985610364
0.56977155732
0.57965910330
0.58951478671
0.59933466539
0.60911481154
0.61885131321
0.62854027594
0.63817782428
0.64776010333
0.65728328030
0.66674354607
```
First, try commenting out L6 and re-run the test. If successful, then it is most likely the first argument's value for the 'pin' parameter.

http://www.espruino.com/Reference#l__global_digitalPulse

Second, the Uncaught SyntaxError output is parsed different than L7 Are we sure the Exact code block is being supplied, or was this a trimmed down version for demonstration?

console.log((Math.sin(p)+1)/2);//, (Math.cos(p)+1)/2, tab.BUTTONS.NONE);
...((Math.sin(p)+1)/2),p+=0.02;,50);

comma vs semi-colon allowing the comment to be treated as code

Third, Please post the results of process.env so that we may understand the environment better.

Full set of reference links to check out at:

Writing an effective forum post
http://forum.espruino.com/conversations/335009/

arrow function does not work

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