function show(a,b) {
var origin = document.getElementById('Subadd').value;
var destination = a.value;
var service = new google.maps.DistanceMatrixService();
service.getDistanceMatrix(
{
origins: [origin],
destinations: [destination],
travelMode: google.maps.TravelMode.DRIVING,
unitSystem: google.maps.UnitSystem.METRIC,
avoidHighways: false,
avoidTolls: false
}, calcD);
}
function calcD(response, status) {
if (status != google.maps.DistanceMatrixStatus.OK) {
alert('Error was: ' + status);
} else {
var origins = response.originAddresses;
var destinations = response.destinationAddresses;
for (var i = 0; i < origins.length; i++) {
var results = response.rows[i].elements;
for (var j = 0; j < results.length; j++) {
c= results[j].distance.text;
b.value=c;
}
}
}
}
这里 a 和 b 是两个文本字段 id。从文本字段 1 onchange 开始,函数 show() 将起作用并在 CalcD() 函数中提醒 c 的值。但是我无法将 c 的值传递到 ID 为 b 的文本字段中。
最佳答案
这是因为 b 在函数 CalcD
中未定义。您必须将它传递给函数或使用一些方法直接调用它,例如 document.getElementById
。
那么你的代码必须是这样的:
function show(a,b) {
var origin = document.getElementById('Subadd').value;
var destination = a.value;
var service = new google.maps.DistanceMatrixService();
service.getDistanceMatrix(
{
origins: [origin],
destinations: [destination],
travelMode: google.maps.TravelMode.DRIVING,
unitSystem: google.maps.UnitSystem.METRIC,
avoidHighways: false,
avoidTolls: false
}, calcD);
}
function calcD(response, status) {
if (status != google.maps.DistanceMatrixStatus.OK) {
alert('Error was: ' + status);
} else {
var origins = response.originAddresses;
var destinations = response.destinationAddresses;
for (var i = 0; i < origins.length; i++) {
var results = response.rows[i].elements;
for (var j = 0; j < results.length; j++) {
c= results[j].distance.text;
b = document.getElementById('id of b input');
b.value=c;
}
}
}
}
关于javascript - 无法使用 javascript 在隐藏字段中显示值?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/51074376/