[英]convert string into 2D-array format in JavaScript
I'm getting string from database and i need to convert it in the format below:我正在从数据库中获取字符串,我需要将其转换为以下格式:
var locations = [
["LOCATION_1", 11.8166, 122.0942],
["LOCATION_2", 11.9804, 121.9189],
["LOCATION_3", 10.7202, 122.5621],
["LOCATION_4", 11.3889, 122.6277],
["LOCATION_5", 10.5929, 122.6325]
];
my code below我的代码如下
var array = ''
var arrayprev= ''
for (var i = 0; i < obj.length; i++) {
array = '['+obj[i].Location + '"' + ',' + obj[i].x + ',' + obj[i].y + '],|'
if (arrayprev == "") {
arrayprev = array;
}
else {
arrayprev = arrayprev + array;
}
}
locations = arrayprev.split("|")
i'm getting only chracters when passing in code below传入下面的代码时,我只得到字符
for (var i = 0; i < locations.length; i++) {
marker = new L.marker([locations[i][1], locations[i][2]], { icon: iconColor(color) })
// PoPup result will be displayed here
.bindPopup(locations[i][0])
//here tool tip will be used to display the label text
.bindTooltip(locations[i][0],
{
permanent: true,
direction: 'right'
}
)
.addTo(map);
hardcoded location array is working fine but when I use my loop I'm not getting the correct data Please help硬编码的位置数组工作正常,但是当我使用我的循环时,我没有得到正确的数据请帮助
it seems to me that you don't have a string as an input but an array of object在我看来,您没有一个字符串作为输入,而是一个对象数组
you can use map
to trasform that array in the shape you want您可以使用
map
将该数组转换为您想要的形状
like this像这样
const obj = [{
Location: "LOCATION_1",
x: 11.8166,
y: 122.0942
},{
Location: "LOCATION_2",
x: 11.8166,
y: 122.0942
},{
Location: "LOCATION_3",
x: 11.8166,
y: 122.0942
},
]
const locations = obj.map(({Location, x, y}) => [Location, x, y])
or you can use that array of object to populate your map或者您可以使用该对象数组来填充您的地图
like this像这样
obj.forEach(({Location, x, y}) => {
marker = new L.marker([x, y], { icon: iconColor(color) })
// PoPup result will be displayed here
.bindPopup(Location)
//here tool tip will be used to display the label text
.bindTooltip(Location,
{
permanent: true,
direction: 'right'
}
)
.addTo(map);
})
from your code, it looks like you just want to convert an object into an array containing arrays.从您的代码来看,您似乎只想将一个对象转换为包含数组的数组。 I don't see the reason working with string here.
我看不出这里使用字符串的原因。
var result = Object.keys(obj).map((key) => {
return [obj[key].Location, obj[key].x, obj[key].y]
})
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