与动态创建的变量有关的问题 [英] Issue with dynamically created variables

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问题描述

我试图在下面的按钮事件中动态访问不同的全局变量(AvGen.svg1,AvGen.svg2等),但是由于某种原因它不工作,即使变量'svg'成为



如何不能工作?

  AvGen = {

currSvg:0,
svg1:null,
svg1:null,

init:function(){
AvGen.loadSVG();
AvGen.toolBox();
},

loadSVG:function(){
AvGen.svg1 = [0,0,255.3,298.5,{type:'path',path:'M 35.3 257.2 C 34.4 245.7 45.4 234.1 48.5 223 C 53.6 204.3 55 185 60 166.2 C 69.5 131 69.6 97.1 89.1 65.1 C 103.4 41.7 129.5 5.3 161.3 19.7 C 184.6 30.3 181.3 59.2 188.9 78.9 C 207.5 127.3 228.6 184.8 230.3 237.3 C 231.3 268.6 202.8 261.3 178.2 264 C 149.2 267.1 120 269.6 91 272.2 C 84.2 272.8 75.8 274.2 69 273 C 60.9 271.6 28.9 259.9 31.3 249.2','fill':'#39b54a','stroke':'none','stroke-width':'0' opacity':'1','stroke-opacity':'0'}];
AvGen.svg2 = [0,0,278.9,314.1,{type:'path',path:'M 32 265 C 31.8 245.2 38 226.9 39.8 207.3 C 41.9 184.4 42 161.7 42 138.7 C 42 121.8 36.5 96.1 45.2 81.3 C 51.3 70.9 50.4 75.9 58 79.2 C 67.5 83.4 70.7 82.8 80.4 79 C 114.7 65.7 149.9 35.5 188.7 41.1 C 211.7 44.5 221.2 57.5 226.2 79.1 C 228.8 90.1 230.1 101.6 231.8 112.9 C 234.7 132.3 233.3 154.3 238.8 173 C 246.5 199.5 258.6 237.3 252 265.8 C 248.9 279.6 231.6 278.3 219.1 279.8 C 191.1 283 164 287 135.8 287 C 109.3 287 75.5 292.8 50 285.3 C 38.6 281.9 31.7 275.2 33 263','fill':'#8dc63f','stroke':'#8dc63f','stroke-miterlimit ':'10','stroke-width':'0','fill-opacity':'1','stroke-opacity':'0'}]
AvGen.paper = Raphael(avatarBox,300,300);
},

toolBox:function(){
var moveRightBtn = $('#moveRightBtn');

moveRightBtn.on('click',function(){
AvGen.paper.clear();
AvGen.currSvg + = 1;

var svg ='AvGen.svg'+ AvGen.currSvg;
console.log(svg); //< --- AvGen.svg1
AvGen.paper.add(svg);
// AvGen.paper.add(AvGen.svg1);< --- works
});
},
};

EDIT:我没有收到任何错误,


code> AvGen = {

currSvg:0,
svg:[],

init:function(){
AvGen.loadSVG ();
AvGen.toolBox();
},

loadSVG:function(){
AvGen.svg.push([0,0,255.3,298.5,{type:'path',path:'M 35.3 257.2 C 34.4 245.7 45.4 234.1 48.5 223 C 53.6 204.3 55 185 60 166.2 C 69.5 131 69.6 97.1 89.1 65.1 C 103.4 41.7 129.5 5.3 161.3 19.7 C 184.6 30.3 181.3 59.2 188.9 78.9 C 207.5 127.3 228.6 184.8 230.3 237.3 C 231.3 268.6 202.8 261.3 178.2 264℃ 149.2 267.1 120 269.6 91 272.2 C 84.2 272.8 75.8 274.2 69 273 C 60.9 271.6 28.9 259.9 31.3 249.2','fill':'#39b54a','stroke':'none','stroke-width':'0' fill-opacity':'1','stroke-opacity':'0'}]);
AvGen.svg.push([0,0,278.9,314.1,{type:'path',path:'M 32 265 C 31.8 245.2 38 226.9 39.8 207.3 C 41.9 184.4 42 161.7 42 138.7 C 42 121.8 36.5 96.1 45.2 81.3 C 51.3 70.9 50.4 75.9 58 79.2 C 67.5 83.4 70.7 82.8 80.4 79 C 114.7 65.7 149.9 35.5 188.7 41.1 C 211.7 44.5 221.2 57.5 226.2 79.1 C 228.8 90.1 230.1 101.6 231.8 112.9 C 234.7 132.3 233.3 154.3 238.8 173 C 246.5 199.5 258.6 237.3 252 265.8 C 248.9 279.6 231.6 278.3 219.1 279.8 C 191.1 283 164 287 135.8 287 C 109.3 287 75.5 292.8 50 285.3 C 38.6 281.9 31.7 275.2 33 263','fill':'#8dc63f','stroke':'#8dc63f','stroke -miterlimit':'10','stroke-width':'0','fill-opacity':'1','stroke-opacity':'0'}]);
AvGen.paper = Raphael(avatarBox,300,300);
},

toolBox:function(){

moveRightBtn.on('click',function(){
AvGen.paper.clear );
AvGen.currSvg + = 1;

var svg = AvGen.svg [AvGen.currSvg-1];
AvGen.paper.add(svg);
});
},
};


I'm trying to dynamically access the different global variables (AvGen.svg1, AvGen.svg2 and so on) in the button event below, but by some reason it doesn't work even though the variable 'svg' becomes the same (e.g. AvGen.svg1) as putting AvGen.svg1 directly into the 'add' method.

How come it doesn't work?

AvGen = {

    currSvg: 0,
    svg1: null,
    svg1: null,

    init: function() {
        AvGen.loadSVG();
        AvGen.toolBox();
    },

    loadSVG: function() {
        AvGen.svg1 = [0,0,255.3,298.5,{type:'path',path:'M 35.3 257.2 C 34.4 245.7 45.4 234.1 48.5 223 C 53.6 204.3 55 185 60 166.2 C 69.5 131 69.6 97.1 89.1 65.1 C 103.4 41.7 129.5 5.3 161.3 19.7 C 184.6 30.3 181.3 59.2 188.9 78.9 C 207.5 127.3 228.6 184.8 230.3 237.3 C 231.3 268.6 202.8 261.3 178.2 264 C 149.2 267.1 120 269.6 91 272.2 C 84.2 272.8 75.8 274.2 69 273 C 60.9 271.6 28.9 259.9 31.3 249.2','fill':'#39b54a','stroke':'none','stroke-width':'0','fill-opacity':'1','stroke-opacity':'0'}];
        AvGen.svg2 = [0,0,278.9,314.1,{type:'path',path:'M 32 265 C 31.8 245.2 38 226.9 39.8 207.3 C 41.9 184.4 42 161.7 42 138.7 C 42 121.8 36.5 96.1 45.2 81.3 C 51.3 70.9 50.4 75.9 58 79.2 C 67.5 83.4 70.7 82.8 80.4 79 C 114.7 65.7 149.9 35.5 188.7 41.1 C 211.7 44.5 221.2 57.5 226.2 79.1 C 228.8 90.1 230.1 101.6 231.8 112.9 C 234.7 132.3 233.3 154.3 238.8 173 C 246.5 199.5 258.6 237.3 252 265.8 C 248.9 279.6 231.6 278.3 219.1 279.8 C 191.1 283 164 287 135.8 287 C 109.3 287 75.5 292.8 50 285.3 C 38.6 281.9 31.7 275.2 33 263','fill':'#8dc63f','stroke':'#8dc63f','stroke-miterlimit':'10','stroke-width':'0','fill-opacity':'1','stroke-opacity':'0'}];
        AvGen.paper = Raphael("avatarBox",300,300);
    },

    toolBox: function() {
       var moveRightBtn = $('#moveRightBtn');

        moveRightBtn.on('click', function(){
            AvGen.paper.clear();
            AvGen.currSvg += 1;

            var svg = 'AvGen.svg' + AvGen.currSvg;
            console.log(svg); // <--- AvGen.svg1
            AvGen.paper.add(svg);
            // AvGen.paper.add(AvGen.svg1); <--- works
        });
    },
};

EDIT: I get no error what so ever in the console when clicking the button.

解决方案

Try this:

AvGen = {

    currSvg: 0,
    svg: [],

    init: function() {
        AvGen.loadSVG();
        AvGen.toolBox();
    },

    loadSVG: function() {
        AvGen.svg.push([0,0,255.3,298.5,{type:'path',path:'M 35.3 257.2 C 34.4 245.7 45.4 234.1 48.5 223 C 53.6 204.3 55 185 60 166.2 C 69.5 131 69.6 97.1 89.1 65.1 C 103.4 41.7 129.5 5.3 161.3 19.7 C 184.6 30.3 181.3 59.2 188.9 78.9 C 207.5 127.3 228.6 184.8 230.3 237.3 C 231.3 268.6 202.8 261.3 178.2 264 C 149.2 267.1 120 269.6 91 272.2 C 84.2 272.8 75.8 274.2 69 273 C 60.9 271.6 28.9 259.9 31.3 249.2','fill':'#39b54a','stroke':'none','stroke-width':'0','fill-opacity':'1','stroke-opacity':'0'}]);
        AvGen.svg.push([0,0,278.9,314.1,{type:'path',path:'M 32 265 C 31.8 245.2 38 226.9 39.8 207.3 C 41.9 184.4 42 161.7 42 138.7 C 42 121.8 36.5 96.1 45.2 81.3 C 51.3 70.9 50.4 75.9 58 79.2 C 67.5 83.4 70.7 82.8 80.4 79 C 114.7 65.7 149.9 35.5 188.7 41.1 C 211.7 44.5 221.2 57.5 226.2 79.1 C 228.8 90.1 230.1 101.6 231.8 112.9 C 234.7 132.3 233.3 154.3 238.8 173 C 246.5 199.5 258.6 237.3 252 265.8 C 248.9 279.6 231.6 278.3 219.1 279.8 C 191.1 283 164 287 135.8 287 C 109.3 287 75.5 292.8 50 285.3 C 38.6 281.9 31.7 275.2 33 263','fill':'#8dc63f','stroke':'#8dc63f','stroke-miterlimit':'10','stroke-width':'0','fill-opacity':'1','stroke-opacity':'0'}]);
        AvGen.paper = Raphael("avatarBox",300,300);
    },

    toolBox: function() {

        moveRightBtn.on('click', function(){
            AvGen.paper.clear();
            AvGen.currSvg += 1;

            var svg = AvGen.svg[AvGen.currSvg-1];
            AvGen.paper.add(svg);
        });
    },
};

这篇关于与动态创建的变量有关的问题的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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