https://api.myjson.com/bins/7xq2x这是我的 JSON 数据,我想在下拉列表中显示键。我的 JSON 数据将是动态的,因此我希望动态 JSON 数据的代码仅采用键
function renderBusinessUnitChart(){
$.ajax({
url: "https://api.myjson.com/bins/7xq2x",
success:function(result){
}
});
}
$(document).ready(function(){
renderBusinessUnitChart();
});
键:名称
、缩写
- 这应该显示在下拉列表中。
最佳答案
用于显示键:
function renderBusinessUnitChart(){
var ddown = document.querySelector('#dropdown') // I don't know what kind of dropdown do you have, so we will use regular select
$.ajax({
url: "https://api.myjson.com/bins/7xq2x",
success:function(result){
const itemKeys = Object.keys(result[0]) // getting keys from first item of result array
var options = itemKeys.map(key => { // looping the keys
const option = new Option(
key,
key
) // creating a one option item for dropdown
ddown.appendChild(option) // adding option to dropdown
return option // returning option and adding it to array
})
console.log (options) // aray of options you will need it for some reason
}
});
}
$(document).ready(function(){
renderBusinessUnitChart();
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<select id="dropdown"></select>
用于显示对象可以包含不同键的键:
function renderBusinessUnitChart(){
// I don't know what kind of dropdown do you have, so we will use regular select
var ddown = document.querySelector('#dropdown')
$.ajax({
url: "https://api.myjson.com/bins/7xq2x",
success:function(result) {
result = [ // for testng purposes only, to check that result may contain objects with different keys
{"name":"Alberta","abbreviation":"AB"},
{"name2":"British Columbia","abbreviation2":"BC"}
]
const options = result // getting array of unique keys from every item in result
.reduce((ac, item) => [...ac, ...Object.keys(item).filter(key => !~ac.indexOf(key))], [])
.map(key => { // looping the keys
// creating a one option item for dropdown
const option = new Option(key, key)
// adding option to dropdown
ddown.appendChild(option)
// returning option and adding it to array
return option
})
// aray of options you will need it for some reason
console.log (options)
}
})
}
$(document).ready(function(){
renderBusinessUnitChart()
})
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<select id="dropdown"></select>
用于显示值:
function renderBusinessUnitChart(){
var ddown = document.querySelector('#dropdown') // I don't know what kind of dropdown do you have, so we will use regular select
$.ajax({
url: "https://api.myjson.com/bins/7xq2x",
success:function(result){
var options = result.map(_ => { // looping the result
const option = new Option(
_.name,
_.abbreviation
) // creating a one option item for dropdown
ddown.appendChild(option) // adding option to dropdown
return option // returning option and adding it to array
})
console.log (options) // aray of options you will need it for some reason
}
});
}
$(document).ready(function(){
renderBusinessUnitChart();
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<select id="dropdown"></select>
关于javascript - 我想在 html 下拉列表中显示 JSON 数据键(而不是值),我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/53297365/