Javascript 未捕获的TypeError:无法将属性“值”设置为null
我一直在fillInAddress函数中遇到错误 这是我的html表格:Javascript 未捕获的TypeError:无法将属性“值”设置为null,javascript,Javascript,我一直在fillInAddress函数中遇到错误 这是我的html表格: <div id="locationField"> <input id="autocomplete" placeholder="Enter your address" onFocus="geolocate()" type="text" width="500px"></input> </div> <form accept-charset="UTF-8" action=
<div id="locationField">
<input id="autocomplete" placeholder="Enter your address" onFocus="geolocate()" type="text" width="500px"></input>
</div>
<form accept-charset="UTF-8" action="/jobs" class="new_job" id="new_job" method="post">
<div class="field">
<label for="job_address">Customer</label><br>
<input id="customer" name="job[address]" type="text" />
</div>
<div class="field">
<label for="job_address">Address</label><br>
<input disabled="disabled" id="street_name" name="job[address]" type="text" />
</div>
<div class="field">
<label for="job_route">Route</label><br>
<input disabled="disabled" id="route" name="job[route]" type="text" />
</div>
<div class="field">
<label for="job_city">City</label><br>
<input disabled="disabled" id="locality" name="job[city]" type="text" />
</div>
<div class="field">
<label for="job_state">State</label><br>
<input disabled="disabled" id="administrative_area_level_1" name="job[state]" type="text" />
</div>
<div class="field">
<label for="job_postal_code">Postal code</label><br>
<input disabled="disabled" id="postal_code" name="job[postal_code]" type="text" />
</div>
<div class="field">
<label for="job_country">Country</label><br>
<input disabled="disabled" id="country" name="job[country]" type="text" />
</div>
<div class="actions">
<input name="commit" type="submit" value="Create Job" />
</div>
</form>
还有我的JS:
<script>
// This example displays an address form, using the autocomplete feature
// of the Google Places API to help users fill in the information.
var placeSearch, autocomplete;
var componentForm = {
street_number: 'short_name',
route: 'long_name',
locality: 'long_name',
administrative_area_level_1: 'short_name',
country: 'long_name',
postal_code: 'short_name'
};
function initialize() {
// Create the autocomplete object, restricting the search
// to geographical location types.
autocomplete = new google.maps.places.Autocomplete(
/** @type {HTMLInputElement} */(document.getElementById('autocomplete')),
{ types: ['geocode'] });
// When the user selects an address from the dropdown,
// populate the address fields in the form.
google.maps.event.addListener(autocomplete, 'place_changed', function() {
fillInAddress();
});
}
// [START region_fillform]
function fillInAddress() {
// Get the place details from the autocomplete object.
var place = autocomplete.getPlace();
for (var component in componentForm) {
document.getElementById(component).value = '';
document.getElementById(component).disabled = false;
}
// Get each component of the address from the place details
// and fill the corresponding field on the form.
for (var i = 0; i < place.address_components.length; i++) {
var addressType = place.address_components[i].types[0];
if (componentForm[addressType]) {
var val = place.address_components[i][componentForm[addressType]];
document.getElementById(addressType).value = val;
}
}
}
// [END region_fillform]
// [START region_geolocation]
// Bias the autocomplete object to the user's geographical location,
// as supplied by the browser's 'navigator.geolocation' object.
function geolocate() {
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(function(position) {
var geolocation = new google.maps.LatLng(
position.coords.latitude, position.coords.longitude);
autocomplete.setBounds(new google.maps.LatLngBounds(geolocation,
geolocation));
});
}
}
// [END region_geolocation]
</script>
当我从自动完成输入字段中选择结果时,表单字段应该填充。然而,这并没有发生。当我直接从这里剪切并粘贴代码时,它工作正常
var componentForm = {
street_number: 'short_name',
route: 'long_name',
locality: 'long_name',
administrative_area_level_1: 'short_name',
country: 'long_name',
postal_code: 'short_name'
};
componentForm的第一个属性是street_number。HTML中没有ID为street_number的元素
因此,document.getElementByIdcomponent返回null,document.getElementByIdcomponent.value导致您引用null的属性值,从而导致错误
根据您的表格,酒店的正确名称应该是street_name。我正要自己回答这个问题。我现在明白了。谢谢您的帮助。您知道如何将街道号码和路线组合起来填充单个输入字段吗?您不能将它们连接起来吗?var streetNumber=1;var route='abc';然后在您的组件形式中,执行以下操作:var street_name=streetNumber+“”+route;或者,您也可以在for循环中检查组件名称是否等于某个值,然后说document.getElementByIdcomponent.value=streetNumber+“”+route;这两种我都试过了,但我很难让它起作用。有什么想法吗?