Question

是否有更好的方法根据特定属性的一组可能值来过滤对象数组？

这有效，但似乎有点笨拙。

const all = [
  {id: 1}, {id: 2}, {id: 3} ...
]
const ids = [2, 3];

const selected = (all, ids) =>
  all.filter(obj => ids.map(id => id === obj.id).some(match => match));

selected(all, ids);
// [{id: 2}, {id: 3}]

在Python中会是这样的：

selected = [obj for obj in all if obj.id in ids]

Answer 1

您可以简单地使用Array.filter()和Array.includes()过滤掉数组：

const all = [ {id: 1}, {id: 2}, {id: 3} ];
const ids = [2, 3];

const selected = (all, ids) => all.filter(obj => ids.includes(obj.id));
  
console.log(selected(all,ids));

Answer 2

您可以使用Array.filter，object destructuration和Array.includes，例如：

const all = [{
  id: 1,
}, {
  id: 2,
}, {
  id: 3,
}];

const ids = [
  2,
  3,
];

const selected = (all, ids) => all.filter(({
  id,
}) => ids.includes(id));

console.log(selected(all, ids));
// [{id: 2}, {id: 3}]

Answer 3

您可以将Set用作通缉的<select name="displayId" class="form-control" id="areaSelect"> <option value="" disabled selected>Select one...</option> <?php foreach($displayLocation as $displayLoc): ?> <optgroup label="<?php echo $displayLoc['location_name']?>"> <option value="<?php echo $displayLoc['displayID']?>"><?php echo $displayLoc['display_name']?></option> <?php endforeach?> </select>，然后针对过滤条件进行检查。

id

根据Javascript中不同的搜索属性值数组来匹配数组中的一组对象

3 个答案: