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如何更改作为另一个对象内的值的对象的值

javascript-objects javascript

-3

Deepika Rao · 技术社区 · 9 年前

var lineSymbol = {
    path: 'M 0,-1 0,1',
    strokeOpacity: 1,
    scale: 4,          
    strokeWeight: 2,
};



function addPolyline(props){    
    flightPath = new google.maps.Polyline({ 
        path: props.flightPath,
        geodesic: true,
        strokeColor: props.color,
        strokeOpacity: 0,
        icons: [{
            icon: lineSymbol,
            offset: '0',
            repeat: '20px'
        }]
    });
}   

addPolyline({
    flightPath: flightPlanCoordinates,
    color: "#f9a61e"
});

1 回复 | 直到 9 年前

1

PA. 9 年前

只需使用 props 传递所需值

function addPolyline(props){  
   lineSymbol.strokeOpacity = props.symbolOpacity;   
   flightPath = new google.maps.Polyline({ 
    ...

或者,如果您不想修改全局 lineSymbol

 function addPolyline(props){  
   var symbol = Object.assign({}, lineSymbol)
   symbol.strokeOpacity = props.symbolOpacity;   
   flightPath = new google.maps.Polyline({ 
     ...
     icons: [{
        icon: symbol,

并调用

addPolyline({
    flightPath: flightPlanCoordinates,
    color: "#f9a61e",
    symbolOpacity: 0.8
});