Javascript if数组元素条件内for循环
我在谷歌地图上绘制了一系列JavaScript数组中返回的位置 我试图根据一个数组元素的值更改标记图标的类型,如下所示Javascript if数组元素条件内for循环,javascript,arrays,google-maps,google-maps-api-3,Javascript,Arrays,Google Maps,Google Maps Api 3,我在谷歌地图上绘制了一系列JavaScript数组中返回的位置 我试图根据一个数组元素的值更改标记图标的类型,如下所示 for (i = 0; i < locations.length; i++) { marker = new google.maps.Marker({ position: new google.maps.LatLng(locations[i][1], locations[i][2]), map: map, if (locations[i][3]
for (i = 0; i < locations.length; i++) {
marker = new google.maps.Marker({
position: new google.maps.LatLng(locations[i][1], locations[i][2]),
map: map,
if (locations[i][3] == "Yes") {
console.log("yes")
} else {
console.log("no")
}
});
google.maps.event.addListener(marker, 'click', (function(marker, i) {
return function() {
infowindow.setContent(locations[i][0]);
infowindow.open(map, marker);
}
})(marker, i));
}
我错过了什么
我错过了什么
您将流代码放在对象初始化器的中间:
for (i = 0; i < locations.length; i++) {
marker = new google.maps.Marker({
position: new google.maps.LatLng(locations[i][1], locations[i][2]),
map: map,
if (locations[i][3] == "Yes") { // ====
console.log("yes") // ====
} else { // ==== Here
console.log("no") // ====
} // ====
});
google.maps.event.addListener(marker, 'click', (function(marker, i) {
return function() {
infowindow.setContent(locations[i][0]);
infowindow.open(map, marker);
}
})(marker, i));
}
…如果
位置[i][3]==“Yes”
为真,则图标
属性的值将为'/img/a.png'
,如果不是,则为'/img/b.png'
。是的,这确实有效,但我应该更具体一点:在新的google.maps.Marker中({我需要能够设置icon:'/img/a.png'或icon:'/img/b.png',具体取决于位置[I][3]的值。你可以像这样使用自执行函数,或者使用三元运算符。我将接受这一点,因为它更简洁
for (i = 0; i < locations.length; i++) {
marker = new google.maps.Marker({
position: new google.maps.LatLng(locations[i][1], locations[i][2]),
map: map,
if (locations[i][3] == "Yes") { // ====
console.log("yes") // ====
} else { // ==== Here
console.log("no") // ====
} // ====
});
google.maps.event.addListener(marker, 'click', (function(marker, i) {
return function() {
infowindow.setContent(locations[i][0]);
infowindow.open(map, marker);
}
})(marker, i));
}
marker = new google.maps.Marker({
position: new google.maps.LatLng(locations[i][1], locations[i][2]),
map: map,
icon: locations[i][3] == "Yes" ? '/img/a.png' : '/img/b.png'
});