mapping : Ethereum Help

In Ethereum how to check if in mapping, the key already exists?

mapping
Updated January 23, 2019 06:28 AM

Associate event struct to user addresses

solidity mapping struct inheritance
Updated January 15, 2019 12:28 PM

Return a mapping in a getAll function

solidity remix mapping
Updated January 15, 2019 08:28 AM

How do I get product/parcelID from particular Assigned address using struct and mapping?

solidity contract-development addresses mapping
Updated January 12, 2019 06:28 AM

How to store multiple Buyers and Sellers with their addresses?

solidity contract-development remix mapping
Updated January 11, 2019 06:28 AM

Struct and Mapping input value error of Invalid Opcode while calling setSeller() to store multiple seller's addresses

contract-development remix arrays mapping struct
Updated January 09, 2019 12:28 PM

Return an array of adresses

solidity mapping
Updated January 05, 2019 10:28 AM

How to iterate through nested mapping

solidity contract-development mapping
Updated January 05, 2019 08:28 AM

How to store addresses of incoming transactions and delete them afterwards

solidity transactions addresses mapping arrays
Updated January 03, 2019 16:28 PM

Pure functions as a replacement of constant mappings?

solidity mapping pure
Updated January 02, 2019 21:28 PM

Why was mapping introduced in Solidity instead of a dictionary or map data strcuture?

solidity mapping
Updated December 29, 2018 14:28 PM

How to access nested struct values?

solidity truffle mapping
Updated December 28, 2018 22:28 PM

Which is the expected behavior trying to get an undefined mapping value?

solidity erc-20 mapping
Updated December 05, 2018 13:28 PM

How do I read an array inside of a struct?

solidity truffle storage arrays mapping
Updated December 04, 2018 00:28 AM

Token-specific ENS equivalent

contract-development tokens erc-20 mapping ens
Updated December 03, 2018 13:28 PM

How can you figure out if a certain key exists in a mapping, Struct defined inside Library (in Solidity)?

solidity mapping
Updated November 26, 2018 17:28 PM

How to initialize a new struct with an empty mapping?

mapping struct
Updated November 21, 2018 13:28 PM

Is it possible to have mappings inside mappings?

solidity contract-development mapping struct
Updated November 15, 2018 20:28 PM

Is there a form of mapping with an even larger space?

solidity mapping bignumber
Updated November 13, 2018 20:28 PM

Membership in a set of strings

solidity storage mapping data-types solidity-best-practices
Updated November 13, 2018 18:28 PM

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