[英]jQuery break out of $.on that is within $.each
我需要遍歷AJAX響應並在滿足條件時中斷事件處理程序。 我在使用此代碼時遇到麻煩:
$.each(response, function(i, v) {
// create mapbox object
var map = L.mapbox.map('map', v.map_embed_id, {
zoomAnimation: false
});
var polygonLayer = L.mapbox.featureLayer().loadURL('https://a.tiles.mapbox.com/v4/' + v.map_embed_id + '/features.json?access_token=abcde').addTo(map);
polygonLayer.on('ready', function() {
var layer = leafletPip.pointInLayer(latlng, polygonLayer, true);
if (layer.length) {
// this is where I need to break out of $.on
// and the current $.each iteration
}
});
});
我知道return false
會脫離$.each
迭代,但這更加困難,因為我需要脫離$.on
事件處理程序。 我能做什么? 我可以使用trigger
嗎?
感謝@Kevin B建議使用遞歸,這就是我固定代碼使其起作用的方式。
getMapsList().done(function(maps) {
getMapboxMap(maps, geocode);
});
function getMapboxMap(maps, geocode) {
var map_params = maps[0];
var map_embed_id = map_params.map_embed_id;
if (maps.length > 0)
maps.shift();
// create mapbox object
var map = L.mapbox.map('map', map_embed_id, {
zoomAnimation: false
});
// create marker of address entered
L.mapbox.featureLayer({
type: 'Feature',
geometry: {
type: 'Point',
coordinates: [
geocode.location.lng,
geocode.location.lat
]
},
properties: {
title: address,
'marker-size': 'medium',
'marker-color': '#f44',
'marker-symbol': 'star'
}
}).addTo(map);
// create polygon layer and add to map from map's geojson
var polygonLayer = L.mapbox.featureLayer().loadURL('https://a.tiles.mapbox.com/v4/' + map_embed_id + '/features.json?access_token=pk.eyJ1IjoiZW5nbGVzaWRldGVycml0b3JpZXMiLCJhIjoiekFIU0NlayJ9.rE9XdicgXc9aIiXJ9yn68w').addTo(map);
// after polygon layer has been added to map
polygonLayer.on('ready', function() {
// featureLayer.getBounds() returns the corners of the furthest-out markers,
// and map.fitBounds() makes sure that the map contains these.
map.fitBounds(polygonLayer.getBounds());
// create a latLng object based on lat/lng of address entered
var latlng = L.latLng(geocode.location.lat, geocode.location.lng);
// create point in layer object
var layer = leafletPip.pointInLayer(latlng, polygonLayer, true);
if (layer.length) {
// found it
return false;
} else {
if (maps.length > 0) {
getMapboxMap(maps, geocode);
}
}
});
}
function getMapsList() {
return $.get('/utility/territories/maps-list');
}
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