Javascript 在chartjs中显示JSON数据
我想用chart.js显示这个数据。其目的是将调查结果可视化。主要用户将是团队负责人。我认为所有问题都有三个折线图。图表将显示问题的日期、人名和值Javascript 在chartjs中显示JSON数据,javascript,json,chart.js,Javascript,Json,Chart.js,我想用chart.js显示这个数据。其目的是将调查结果可视化。主要用户将是团队负责人。我认为所有问题都有三个折线图。图表将显示问题的日期、人名和值 getHistoricalData() { return [ { date: "2018-03-14T12:00:00Z", results: [ { teamMemberId: "Abby", questions: [
getHistoricalData() {
return [
{
date: "2018-03-14T12:00:00Z",
results: [
{
teamMemberId: "Abby",
questions: [
{
questionId: "1",
value: 5
},
{
questionId: "2",
value: 3
},
{
questionId: "3",
value: 3
}
]
},
{
teamMemberId: "Bill",
questions: [
{
questionId: "1",
value: 4
},
{
questionId: "2",
value: 4
},
{
questionId: "3",
value: 4
}
]
},
{
teamMemberId: "Castor",
questions: [
{
questionId: "1",
value: 5
},
{
questionId: "2",
value: 5
},
{
questionId: "3",
value: 5
}
]
},
{
teamMemberId: "David",
questions: [
{
questionId: "1",
value: 5
},
{
questionId: "2",
value: 3
},
{
questionId: "3",
value: 3
}
]
},
{
teamMemberId: "Eugenia",
questions: [
{
questionId: "1",
value: 2
},
{
questionId: "2",
value: 3
},
{
questionId: "3",
value: 4
}
]
}
]
},
{
date: "2018-03-07T12:00:00Z",
results: [
{
teamMemberId: "Abby",
questions: [
{
questionId: "1",
value: 5
},
{
questionId: "2",
value: 4
},
{
questionId: "3",
value: 5
}
]
},
{
teamMemberId: "",
questions: [
{
questionId: "1",
value: 4
},
{
questionId: "2",
value: 3
},
{
questionId: "3",
value: 4
}
]
},
{
teamMemberId: "Castor",
questions: [
{
questionId: "1",
value: 4
},
{
questionId: "2",
value: 4
},
{
questionId: "3",
value: 5
}
]
},
{
teamMemberId: "David",
questions: [
{
questionId: "1",
value: 4
},
{
questionId: "2",
value: 4
},
{
questionId: "3",
value: 2
}
]
},
{
teamMemberId: "Eugenia",
questions: [
{
questionId: "1",
value: 3
},
{
questionId: "2",
value: 3
},
{
questionId: "3",
value: 3
}
]
}
]
},
];
};
Krzysiek你需要这样做 尝试如下方式读取数据：
var dates = [];
var allTeamMember = [];
getHistoricalData().forEach(function(element, index, array) {
dates.push(element.date);
var teamMember = []
element.results.forEach(function(element, index, array) {
var questions = [];
element.questions.forEach(function(element, index, array) {
questions.push(element.value);
});
teamMember[element.teamMemberId] = questions;
});
allTeamMember.push(teamMember);
});
dates.forEach(function(element, index, array) {
$("#charts").append("<canvas id=\"chart-" + index + "\" width=\"400\" height=\"400\"></canvas>");
var ctx = $("#chart-" + index);
var myChart = new Chart(ctx, {
type: 'line',
data: {
labels: [1,2,3],
datasets: [{
label: 'Datum: ' + dates[index],
data: allTeamMember[index][getKeys(allTeamMember[index])[0]],
backgroundColor: [
'rgba(255, 99, 132, 0.2)',
'rgba(54, 162, 235, 0.2)',
'rgba(255, 206, 86, 0.2)',
'rgba(75, 192, 192, 0.2)',
'rgba(153, 102, 255, 0.2)',
'rgba(255, 159, 64, 0.2)'
],
borderColor: [
'rgba(255,99,132,1)',
'rgba(54, 162, 235, 1)',
'rgba(255, 206, 86, 1)',
'rgba(75, 192, 192, 1)',
'rgba(153, 102, 255, 1)',
'rgba(255, 159, 64, 1)'
],
borderWidth: 1
}]
},
options: {
scales: {
yAxes: [{
ticks: {
beginAtZero:true
}
}]
}
}
});
});
function getKeys(obj, filter) {
var name,
result = [];
for (name in obj) {
if ((!filter || filter.test(name)) && obj.hasOwnProperty(name)) {
result[result.length] = name;
}
}
return result;
}
var dates = [];
var allTeamMember = [];
getHistoricalData().forEach(function(element, index, array) {
dates.push(element.date);
var teamMember = []
element.results.forEach(function(element, index, array) {
var questions = [];
element.questions.forEach(function(element, index, array) {
questions.push(element.value);
});
teamMember[element.teamMemberId] = questions;
});
allTeamMember.push(teamMember);
});
dates.forEach(function(element, index, array) {
$("#charts").append("<canvas id=\"chart-" + index + "\" width=\"400\" height=\"400\"></canvas>");
var ctx = $("#chart-" + index);
var myChart = new Chart(ctx, {
type: 'line',
data: {
labels: [1,2,3],
datasets: [{
label: 'Datum: ' + dates[index],
data: allTeamMember[index][getKeys(allTeamMember[index])[0]],
backgroundColor: [
'rgba(255, 99, 132, 0.2)',
'rgba(54, 162, 235, 0.2)',
'rgba(255, 206, 86, 0.2)',
'rgba(75, 192, 192, 0.2)',
'rgba(153, 102, 255, 0.2)',
'rgba(255, 159, 64, 0.2)'
],
borderColor: [
'rgba(255,99,132,1)',
'rgba(54, 162, 235, 1)',
'rgba(255, 206, 86, 1)',
'rgba(75, 192, 192, 1)',
'rgba(153, 102, 255, 1)',
'rgba(255, 159, 64, 1)'
],
borderWidth: 1
}]
},
options: {
scales: {
yAxes: [{
ticks: {
beginAtZero:true
}
}]
}
}
});
});
function getKeys(obj, filter) {
var name,
result = [];
for (name in obj) {
if ((!filter || filter.test(name)) && obj.hasOwnProperty(name)) {
result[result.length] = name;
}
}
return result;
}
dates.forEach（函数（元素、索引、数组）{
$（“#图表”）。追加（“”）；
var ctx=$（“#图表-”+指数）；
var myChart=新图表（ctx{
键入：“行”，
数据：{
标签：[1,2,3]，
数据集：[{
标签：“基准：”+日期[索引]，
数据：allTeamMember[index][getKeys（allTeamMember[index]）[0]]，
背景颜色：[
"rgba(255,99,132,0.2)",，
“rgba（54162235,0.2）”，
"rgba(255,206,86,0.2)",，
“rgba（751921920.2）”，
“rgba（153102255,0.2）”，
‘rgba（255、159、64、0.2）’
],
边框颜色：[
"rgba(255,99132,1)",，
“rgba（54162235,1）”，
"rgba(255,206,86,1)",，
"rgba(751921921)",，
"rgba(153102255,1)",，
‘rgba（255、159、64、1）’
],
边框宽度：1
}]
},
选项：{
比例：{
雅克斯：[{
滴答声：{
贝吉纳泽罗：是的
}
}]
}
}
});
});
功能获取键（obj、过滤器）{
变量名，
结果=[]；
for（obj中的名称）{
if（（！filter | | filter.test（名称））和&obj.hasOwnProperty（名称））{
结果[result.length]=名称；
}
}
返回结果；
}
希望有帮助。你自己试试看。你的数据来自PHP吗？告诉我们你做了什么？我们不是来做你的工作的：dw你的问题是什么？@satyampathak const CHART=document.getElementById（'lineChart'）；var lineChart=new Chart（图表，{type:'line'，数据：{labels:Object.keys（data[results.teamMemberId]），数据集：[{label:'My first dataset'，fill:false，lineTension:0，backgroundColor:“rgba（75192192,0.4）”，borderColor:“rgba（75192192,1）”，borderCapStyle:'butt'，borderDashOffset:[]，borderDashOffset:0.0，borderJointStyle:'miter'，数据：Object.values（数据[results.questions.questionId]）}]}}@rhalpdarrencAbera nope，来自js文件