for循环内外变量同值

Question

我有一组对象，这些对象将信息提供给生成“标记”的变量：

var markers = [

//testPOW
{ mesh: ["campDome","POW"],
  color: iconRed,
  location: {lat: 43.30985465943113, lng: 11.898409657895801},
  visible: true,
  id: "TestPOW",
  category: "POW"
},

//testCamps
{ mesh: ["campDome","Camps"],
  color: iconBlue,
  location: {lat: 27.051081239338288, lng: 21.074973750899662},
  visible: true,
  id: "TestCamp",
  category: "Camps"
},

//testInternedCivilians
{ mesh: ["campDome","InternedCivilians"],
  color: iconYellow,
  location: {lat: 47.866084023826794, lng: 2.61794289751219},
  visible: true,
  id: "TestInternedCivilians",
  category: "InternedCivilians"
},
]

以下代码生成标记： //生成标记

for ( var i=0; i < markers.length; i++ ) {

    var marker = this.addMarker( {          
        mesh : markers[i].mesh,
        color: markers[i].color,
        color2: 'white',
        location : markers[i].location,
        scale: 0.4,
        offset: 0,
        visible: markers[i].visible,
        id: markers[i].id,
        category: markers[i].category
        
    } );
};

虽然不在生成标记的 for 循环内，但变量 marker 是这样的：

Earth.Marker {options: {…}, object3d: Vn, isMarker: true, earth: Earth, mesh: Array(2), …}

这只是最后一个要生成的

在循环内部是这样的：

scripts.js:244 
Earth.Marker {options: {…}, object3d: Vn, isMarker: true, earth: Earth, mesh: Array(2), …}
scripts.js:244 
Earth.Marker {options: {…}, object3d: Vn, isMarker: true, earth: Earth, mesh: Array(2), …}
scripts.js:244 
Earth.Marker {options: {…}, object3d: Vn, isMarker: true, earth: Earth, mesh: Array(2), …}
scripts.js:244 
Earth.Marker {options: {…}, object3d: Vn, isMarker: true, earth: Earth, mesh: Array(2), …}
scripts.js:244 
Earth.Marker {options: {…}, object3d: Vn, isMarker: true, earth: Earth, mesh: Array(2), …}
scripts.js:244 
Earth.Marker {options: {…}, object3d: Vn, isMarker: true, earth: Earth, mesh: Array(2), …}
scripts.js:244 
Earth.Marker {options: {…}, object3d: Vn, isMarker: true, earth: Earth, mesh: Array(2), …}
scripts.js:244 
Earth.Marker {options: {…}, object3d: Vn, isMarker: true, earth: Earth, mesh: Array(2), …}
scripts.js:244 
Earth.Marker {options: {…}, object3d: Vn, isMarker: true, earth: Earth, mesh: Array(2), …}
scripts.js:244 
Earth.Marker {options: {…}, object3d: Vn, isMarker: true, earth: Earth, mesh: Array(2), …}
scripts.js:244 
Earth.Marker {options: {…}, object3d: Vn, isMarker: true, earth: Earth, mesh: Array(2), …}
scripts.js:244 
Earth.Marker {options: {…}, object3d: Vn, isMarker: true, earth: Earth, mesh: Array(2), …}
scripts.js:244 
Earth.Marker {options: {…}, object3d: Vn, isMarker: true, earth: Earth, mesh: Array(2), …}
scripts.js:244 
Earth.Marker {options: {…}, object3d: Vn, isMarker: true, earth: Earth, mesh: Array(2), …}
scripts.js:244 
Earth.Marker {options: {…}, object3d: Vn, isMarker: true, earth: Earth, mesh: Array(2), …}
scripts.js:244 
Earth.Marker {options: {…}, object3d: Vn, isMarker: true, earth: Earth, mesh: Array(2), …}

如果在 for 循环外调用，我怎样才能marker包含所有生成的对象？

Answer 1

创建数组有帮助吗？

let marker = [];

for (var i=0; i < markers.length; i++) {

    marker.push(this.addMarker( {          
        mesh : markers[i].mesh,
        color: markers[i].color,
        color2: 'white',
        location : markers[i].location,
        scale: 0.4,
        offset: 0,
        visible: markers[i].visible,
        id: markers[i].id,
        category: markers[i].category
        
    }));
};

或者，可能是一个对象？


let marker = {};

for (var i=0; i < markers.length; i++) {

    marker[markers[i].id] = this.addMarker({          
        mesh : markers[i].mesh,
        color: markers[i].color,
        color2: 'white',
        location : markers[i].location,
        scale: 0.4,
        offset: 0,
        visible: markers[i].visible,
        category: markers[i].category
        
    });
};

for循环内外变量同值

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