Javascript 如何在列表中添加词典?
我试图创建一个for循环,将值存储在一个字典中,每次迭代都会将这个字典附加到一个列表中 已尝试使用push()和索引列表附加,但未成功Javascript 如何在列表中添加词典?,javascript,dictionary,for-loop,Javascript,Dictionary,For Loop,我试图创建一个for循环,将值存储在一个字典中,每次迭代都会将这个字典附加到一个列表中 已尝试使用push()和索引列表附加,但未成功 json = { "MUNICIPIOS":[ {"ATRIBUTOS":["atrib1","atrib2","atrib3"],"VALORES": [10, 100, 1000]}, {"ATRIBUTOS":["atrib1","atrib2","atrib3"],"VALORES": [20, 200, 2000
json = {
"MUNICIPIOS":[
{"ATRIBUTOS":["atrib1","atrib2","atrib3"],"VALORES": [10, 100, 1000]},
{"ATRIBUTOS":["atrib1","atrib2","atrib3"],"VALORES": [20, 200, 2000]},
{"ATRIBUTOS":["atrib1","atrib2","atrib3"],"VALORES": [30, 300, 3000]},
{"ATRIBUTOS":["atrib1","atrib2","atrib3"],"VALORES": [40, 400, 4000]}
]
};
var atributos = json["MUNICIPIOS"][0]["ATRIBUTOS"];
var municipios = json["MUNICIPIOS"];
var dimensoes = [];
var dicionario = {label:"", values:[]};
for (var atr = 0; atr < atributos.length; atr++){
dicionario.label = atributos[atr];
valores = [];
for (var mun=0; mun < municipios.length; mun++){
valores.push(municipios[mun]["VALORES"][atr]);
dicionario.values = valores;
}
//dimensoes.push(dicionario);
dimensoes[atr] = dicionario;
}
console.log(dimensoes);
我需要这个:
// Expected result
[
{ label: 'atrib1', values: [ 10, 20, 30, 40 ] },
{ label: 'atrib2', values: [ 100, 200, 300, 400 ] },
{ label: 'atrib3', values: [ 1000, 2000, 3000, 4000 ] }
]
我做错了什么?您的代码的问题是您在哪里“填充”
DICIONIO
-这一个对象被用于所有输出维度[atr]
var dicionario = {label:"", values:[]};
for (var atr = 0; atr < atributos.length; atr++){
dicionario.label = atributos[atr];
// snip - rest of your code
dimensoes[atr] = dicionario;
}
但是,对于整洁的ES6+解决方案:
const json={
“市政当局”:[
{“ATRIBUTOS”:[“atrib1”、“atrib2”、“atrib3”],“VALORES”:[101001000]},
{“ATRIBUTOS”:[“atrib1”、“atrib2”、“atrib3”],“VALORES”:[202002000]},
{“ATRIBUTOS”:[“atrib1”、“atrib2”、“atrib3”],“VALORES”:[30,300,3000]},
{“ATRIBUTOS”:[“atrib1”、“atrib2”、“atrib3”],“VALORES”:[404004000]}
]
};
const atributos=json.MUNICIPIOS[0].atributos;
const municipios=json.municipios;
const dimensoes=atributos.map((标签,atr)=>({
标签,
值:municipio.map(municipio=>municipio.VALORES[atr])
}));
log(JSON.stringify(dimensoes,null,4))代码>代码的问题在于“填充”DICIONIO
-这一个对象用于所有输出dimensoes[atr]
var dicionario = {label:"", values:[]};
for (var atr = 0; atr < atributos.length; atr++){
dicionario.label = atributos[atr];
// snip - rest of your code
dimensoes[atr] = dicionario;
}
但是,对于整洁的ES6+解决方案:
const json={
“市政当局”:[
{“ATRIBUTOS”:[“atrib1”、“atrib2”、“atrib3”],“VALORES”:[101001000]},
{“ATRIBUTOS”:[“atrib1”、“atrib2”、“atrib3”],“VALORES”:[202002000]},
{“ATRIBUTOS”:[“atrib1”、“atrib2”、“atrib3”],“VALORES”:[30,300,3000]},
{“ATRIBUTOS”:[“atrib1”、“atrib2”、“atrib3”],“VALORES”:[404004000]}
]
};
const atributos=json.MUNICIPIOS[0].atributos;
const municipios=json.municipios;
const dimensoes=atributos.map((标签,atr)=>({
标签,
值:municipio.map(municipio=>municipio.VALORES[atr])
}));
log(JSON.stringify(dimensoes,null,4))
putdiciario={label:,值:[]}
作为for loopputdiciario={label:,value:[]}内的第一行代码>作为for循环内的第一行
var dicionario = {label:"", values:[]};
for (var atr = 0; atr < atributos.length; atr++){
dicionario = {label:atributos[atr], values:[]};
//dicionario.label = atributos[atr]; not required as it is set above
// snip - rest of your code
dimensoes[atr] = dicionario;
}