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metamask-extension/shared/lib/token-util.js

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/**
* Gets the '_value' parameter of the given token transaction data
* (i.e function call) per the Human Standard Token ABI, if present.
*
* @param {object} tokenData - ethers Interface token data.
* @returns {string | undefined} A decimal string value.
*/
/**
* Gets either the '_tokenId' parameter or the 'id' param of the passed token transaction data.,
* These are the parsed tokenId values returned by `parseStandardTokenTransactionData` as defined
* in the ERC721 and ERC1155 ABIs from metamask-eth-abis (https://github.com/MetaMask/metamask-eth-abis/tree/main/src/abis)
*
* @param {object} tokenData - ethers Interface token data.
* @returns {string | undefined} A decimal string value.
*/
export function getTokenIdParam(tokenData = {}) {
return (
tokenData?.args?._tokenId?.toString() ?? tokenData?.args?.id?.toString()
);
}