Try to make the following steps:

### 1. Change package.json

```cairo
"browserslist": {
    "production": [
      "chrome >= 67",
      "edge >= 79",
      "firefox >= 68",
      "opera >= 54",
      "safari >= 14"
    ],
    "development": [
      "last 1 chrome version",
      "last 1 firefox version",
      "last 1 safari version"
    ]
  }
```

in package.json

The issue is that native BigInt support is required atm

### 2. Delete node modules

This worked like a charm if you delete `node_modules`

Newton

I made an example using [this library with react](https://github.com/fracek/starknet-react-example), everything is working fine in development, but in production, it looks like starknet.js is throwing a type error. You can [open this page](http://starknet-react-example.vercel.app/) to see the error more in detail.

To reproduce locally:

- Clone my example repo
- Build with `yarn run build`
- Serve production build with `yarn run serve`

Based on this [Github thread](https://github.com/0xs34n/starknet.js/issues/37)

How do I use Create React App in StarknetJS?

Hi, just saw starknet.js latest is now 4.4 and not 3.x anymore. Do you plan to move the that release at what horizon? Is there some known issues staying with 3.x and working with starknet-react?

_This question was originally posted on [StarkNet Discord](https://www.newton.so/view?tags=discord)_

Is there any issue between using 4.4 and 3.x starknet.js?

How do you write the pseudocode:


if x == 1 and y == 1, then return 1.


Else return 0.


ㅤ
_This question was originally posted on [Triality](https://triality.org/question/767)_

How to write "and" conditional logic in Cairo?

Python issues with Pathfinder

I am trying to deploy my contract using this tutorial
[https://medium.com/starknet-edu/deploying-to-starknet-with-the-universal-deployer-contract-c6de07092bfb](https://medium.com/starknet-edu/deploying-to-starknet-with-the-universal-deployer-contract-c6de07092bfb)
But as I follow the steps, I got an error at the contract declaration step: `Unitialized Contract`

Trying to deploy contract with Argent guide but got error Unitialized Contract

How do you write an else if statement in Cairo?


ㅤ
_This question was originally posted on [Triality](https://triality.org/question/419)_

Cairo: Else if statement

Does anyone know how to print a uint256 in protostar tests?

```
let (local balance) = IERC20.balanceOf(asset, owner);
%{
    balance = reflect.balance.get()
    print("current owner balance: ", balance)
%}
```

this errors out: [https://github.com/software-mansion/protostar/issues/1129](https://github.com/software-mansion/protostar/issues/1129)

Does anyone know how to print a uint256 in protostar tests?

Does AA support "Session Keys" so I can avoid signing too many transactions when they are redundant?

---

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Popular tags

How do I use Create React App in StarknetJS?

1 answers

1. Change package.json

2. Delete node modules

Your answer

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