JS Contract

table

Table Object

multi index table object

Member Attribute

name

table name

Type：String

Example：

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exports.hi = v => {
    var players = db.players(action.account, action.account); 
    console.log(players.name);
};

code

Point to the name of the contract issuer

Type: String

Example：

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exports.hi = v => {
    var players = db.players(action.account, action.account); 
    console.log(players.code);
};

scope

account_name belongs to the data of table

Type: String

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exports.hi = v => {
    var players = db.players(action.account, action.account); 
    console.log(players.scope);
};

indexes

Query the current index，return all index object，Each index is a new Table object

Type: Object

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exports.hi = v => {
    var players = db.players(action.account, action.account); 
    console.log(players.indexes);
};

member function

emplace

save new data to table

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Table.emplace(payer,val);

Parameter Usage:

Example：

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exports.hi = v => {
    var players = db.players(action.account, action.account);
    players.emplace(action.account, {
        title: "ceo",
        age: 48,
        nickname: "lion1",
        id: 123
    });
};

find

find data from table

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Table.find(id);

Parameter Usage:

Results：

Example:

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exports.hi = v => {
    var players = db.players(action.account, action.account);
    console.log(players.find(v).data)
};

get_primary_key

Generate an autoincrement primary key

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Table.get_primary_key();

Example:

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exports.hi = v => {
    var players = db.players(action.account, action.account);
    console.log(players.get_primary_key())
};

lowerbound

Find the result less than parameter from the table

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Table.lowerbound(id);

Parameter Usage:

Results：

Example:

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exports.hi1 = v => {
    var players = db.players1(action.account, action.account);
    var data = players.lowerbound(123);
    console.log(data.data, data1.data);
};

upperbound

find results that greater than parameter from table

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Table.upperbound(id);

Parameter Usage:

Results：

Example:

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exports.hi1 = v => {
    var players = db.players1(action.account, action.account);
    var data1 = players.upperbound(123);
    console.log(data.data, data1.data);
};

toString

Return a string representation of an object，General return “[Native Object]”，Objects can be reimplemented according to their own characteristics

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Table.toString();

Results:

Example：

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exports.hi1 = v => {
    var players = db.players1(action.account, action.account);
    console.log(players.toString());
};

toJSON

JSON format of returning object，Returns a collection of readable properties defined by an object

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Table.toJSON(key);

Parameter Usage:

Results:

Example：

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exports.hi1 = key => {
    var players = db.players1(action.account, action.account);
    console.log(players.toJSON(key));
};