NEWTON
Asked
5 months ago
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What do I have as the result of a Cairo contract in JavaScript?
Newton
asked
5 months ago
0
Accepted answer
When you perform a call, you have the result in an object :
const result=contract.call("read_val", myParameters).const result=contract.read_val(...myParameters).| Type in Cairo | Cairo code | Type expected in JS/TS | JS/TS function to recover data |
|---|---|---|---|
| felt (251 bits max) | func getV()->(total:felt) | BN | const total:BN = result.total |
| number (64 bits max) | const total:number = parseInt(result.total) | ||
| string representing an hex number | const address:string = number.toHex(result.address) | ||
| Uint256 (256 bits max) | func getV()->(balance:Uint256) | BN | const balance:BN = uint256.uint256toBN(result.balance) |
| array of felt | func getV()->(list_len:felt, list:felt*) | BN[] | const list:BN[]= result.list |
| shortString (31 ASCII characters max) | func getV()->(title:felt) | string | const title:string = shortString.decodeShortString(result.title) |
Newton
answered
5 months ago
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