这是我所拥有的:我想要合并那些以 "path-"+i 开头的键值对。同时,我希望在最终结果中删除这些键名中的 "path-i"。
我开始做某件事,但还远远不够:
这是一个期望的结果(为每个不同的键创建新数组):
var arr = [
{
"key": "path-0-mp4",
"value": [
"media/video/01.mp4",
"media/video/01_hd.mp4"
]
},
{
"key": "path-0-quality",
"value": [
"720p",
"1080p"
]
},
{
"key": "path-1-mp4",
"value": [
"media/video/02.mp4",
"media/video/02_hd.mp4"
]
},
{
"key": "path-1-quality",
"value": [
"SD",
"HD"
]
}
]
这是一个期望的结果:
var arr = [
[
{
"mp4": "media/video/01.mp4",
"quality": "720p"
},
{
"mp4": "media/video/01_hd.mp4",
"quality": "1080p"
},
],
[
{
"mp4": "media/video/02.mp4",
"quality": "SD"
},
{
"mp4": "media/video/02_hd.mp4",
"quality": "HD"
},
],
]
我开始做某件事,但还远远不够:
var key, new_key, value,j=0, z=0, parr = [], obj;
for(var i = 0;i<a.length;i++){
console.log('item:' ,a[i])
key = a[i].key, value = a[i].value
if(key.indexOf('path-'+j.toString()) > -1){
new_key = key.substr(key.lastIndexOf('-')+1)
console.log(key, new_key, value)
for(var z = 0;z<value.length;z++){
parr.push({[new_key]: value[z] })
}
}
}
console.log(parr)
[
{
"mp4": "media/video/01.mp4"
},
{
"mp4": "media/video/01_hd.mp4"
},
{
"quality": "720p"
},
{
"quality": "1080p"
}
]
编辑:
数组可能潜在地拥有需要以相同方式进行分组的不同键,例如:
var arr = [
{
"key": "path-0-mp4",
"value": [
"media/video/01.mp4",
"media/video/01_hd.mp4"
]
},
{
"key": "path-0-quality",
"value": [
"720p",
"1080p"
]
},
{
"key": "path-1-mp4",
"value": [
"media/video/02.mp4",
"media/video/02_hd.mp4"
]
},
{
"key": "path-1-quality",
"value": [
"SD",
"HD"
]
},
{
"key": "subtitle-0-label",
"value": [
"English",
"German",
"Spanish"
]
},
{
"key": "subtitle-0-src",
"value": [
"data/subtitles/sintel-en.vtt",
"data/subtitles/sintel-de.vtt",
"data/subtitles/sintel-es.vtt"
]
},
{
"key": "subtitle-1-label",
"value": [
"German",
"Spanish"
]
},
{
"key": "subtitle-1-src",
"value": [
"data/subtitles/tumblr-de.vtt",
"data/subtitles/tumblr-es.vtt"
]
}
]
这是一个期望的结果(为每个不同的键创建新数组):
var arr = [
[
{
"mp4": "media/video/01.mp4",
"quality": "720p"
},
{
"mp4": "media/video/01_hd.mp4",
"quality": "1080p"
},
],
[
{
"mp4": "media/video/02.mp4",
"quality": "SD"
},
{
"mp4": "media/video/02_hd.mp4",
"quality": "HD"
},
],
],
arr2 = [
[
{
"label": "English",
"src": "data/subtitles/sintel-en.vtt",
},
{
"label": "German",
"src": "data/subtitles/sintel-de.vtt"
},
{
"label": "Spanish",
"src": "data/subtitles/sintel-es.vtt"
}
],
[
{
"label": "Spanish",
"src": "data/subtitles/tumblr-es.vtt",
},
{
"label": "German",
"src": "data/subtitles/tumblr-de.vtt"
}
]
]