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how to get a value from a mapping solidity

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Ace Syder answered on September 3, 2021 Popularity 8/10 Helpfulness 2/10

answer how to get a value from a mapping solidity

related mapping in solidity

related how to get a value from a mapping solidity

how to get a value from a mapping solidity

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// SPDX-License-Identifier: UNLICENSED

pragma solidity 0.8.3;

contract Nested {
    
    struct Record {
        string  id;
        uint requestTime;
        uint releaseTime;
        Direction dir;
    }
    
    struct Direction {
        bool foo;
        uint bar;
    }
    
    mapping(address => Record[]) records;
    
    function insert(address key, string memory id, uint requestTime, uint releaseTime, bool foo, uint bar) public {

        Direction memory d = Direction({
            foo: foo,
            bar: bar
        });
        
        Record memory r = Record({
            id: id,
            requestTime: requestTime,
            releaseTime: releaseTime,
            dir: d
        });
        
        records[key].push(r);
    }
    
    function inspect(address key) public view returns(Record[] memory) {
        return records[key];
    }
    
}

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Source: ethereum.stackexchange.com

Tags: get mapping solidity whatever

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Contributed on Oct 16 2022

Ace Syder

0 Answers Avg Quality 2/10

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mapping in solidity

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    mapping(type => type) mappingName;

Popularity 10/10 Helpfulness 4/10 Language whatever

Source: Grepper

Tags: mapping

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Contributed on Sep 03 2021

Sheeeev66

0 Answers Avg Quality 2/10

mapping in solidity

Comment

contract Mappings{
mapping(uint=> string) public colors;
  constructor(){
  colors[1]= "Red";
   colors[2]="Yellow";
  }
  //mapping store data in key value pair here we have colors which contain 
//id with color name
}

Popularity 9/10 Helpfulness 4/10 Language solidity

Source: Grepper

Tags: mapping

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Contributed on Sep 09 2022

Shirshak Kandel

0 Answers Avg Quality 2/10

how to get a value from a mapping solidity

Comment

// SPDX-License-Identifier: UNLICENSED

pragma solidity 0.8.3;

contract Nested {
    
    struct Record {
        string  id;
        uint requestTime;
        uint releaseTime;
        Direction dir;
    }
    
    struct Direction {
        bool foo;
        uint bar;
    }
    
    mapping(address => Record[]) records;
    
    function insert(address key, string memory id, uint requestTime, uint releaseTime, bool foo, uint bar) public {

        Direction memory d = Direction({
            foo: foo,
            bar: bar
        });
        
        Record memory r = Record({
            id: id,
            requestTime: requestTime,
            releaseTime: releaseTime,
            dir: d
        });
        
        records[key].push(r);
    }
    
    function inspect(address key) public view returns(Record[] memory) {
        return records[key];
    }
    
}

Popularity 8/10 Helpfulness 2/10 Language whatever

Source: ethereum.stackexchange.com

Tags: get mapping

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Contributed on Oct 16 2022

Ace Syder

0 Answers Avg Quality 2/10

how to get a value from a mapping solidity

Comment

// SPDX-License-Identifier: UNLICENSED

pragma solidity 0.8.3;

contract Nested {
    
    struct Record {
        string  id;
        uint requestTime;
        uint releaseTime;
        Direction dir;
    }
    
    struct Direction {
        bool foo;
        uint bar;
    }
    
    mapping(address => Record[]) records;
    
    function insert(address key, string memory id, uint requestTime, uint releaseTime, bool foo, uint bar) public {

        Direction memory d = Direction({
            foo: foo,
            bar: bar
        });
        
        Record memory r = Record({
            id: id,
            requestTime: requestTime,
            releaseTime: releaseTime,
            dir: d
        });
        
        records[key].push(r);
    }
    
    function inspect(address key) public view returns(Record[] memory) {
        return records[key];
    }
    
}

Popularity 8/10 Helpfulness 2/10 Language whatever

Source: ethereum.stackexchange.com

Tags: get mapping

Link to this answer
Share Copy Link

Contributed on Oct 16 2022

Ace Syder

0 Answers Avg Quality 2/10

how to get a value from a mapping solidity

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