获取上一个节点返回的项目数(Get number of items returned by the previous node)
要获取上一个节点返回的项目数：
🌐 To get the number of items returned by the previous node:
=== “JavaScript”
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28 | ```js
if (Object.keys(items[0].json).length === 0) {
return [
{
json: {
results: 0,
}
}
]
}
return [
{
json: {
results: items.length,
}
}
];
```
输出将类似于以下内容。
```json
[
{
"results": 8
}
]
```
|
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16 | if len(items[0].json) == 0:
return [
{
"json": {
"results": 0,
}
}
]
else:
return [
{
"json": {
"results": items.length,
}
}
]
|
The output will be similar to the following.