如何减慢javascript循环速度 [英] how to slow down a javascript loop
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问题描述
我希望在以下循环的每次迭代中添加1-2秒延迟。
I would like a add a 1-2 second delay on each iteration of the following loop.
<html>
<script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?sensor=false"></script>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>
<input id="start" type="submit"> </input>
<div id='status'></div>
<script>
var geocoder=new google.maps.Geocoder();
var glGeocodeCount = 0 ;
$(document).ready(function() {
$('#start').click(function() {
//srPerformGeocode("TD Tower, 55 King Street West, Toronto, ON, Canada, M5K 1A2");
for(x=0;x<20;x++){
srPerformGeocode("TD Tower, 55 King Street West, Toronto, ON, Canada, M5K 1A2");
}
return false;
});
});
function srPerformGeocode(address){
if (geocoder){
geocoder.geocode({ 'address': address }, function (results, status) {
if (status == google.maps.GeocoderStatus.OK){
$('#status').prepend("Success : " + address + "<br/>");
}
else{
$('#status').prepend("Failed : " + address + "<br/>");
}
});
}
}
</script>
推荐答案
你可以用<$ c $这样做c> setTimeout():
$(document).ready(function() {
$('#start').click(function() {
//srPerformGeocode("TD Tower, 55 King Street West, Toronto, ON, Canada, M5K 1A2");
var x = 0;
function go() {
srPerformGeocode("TD Tower, 55 King Street West, Toronto, ON, Canada, M5K 1A2");
if (x++ < 20) {
setTimeout(go, 2000);
}
}
go();
return false;
});
});
这确实让我想知道为什么你要在完全相同的地址上进行20次地理编码查询一排?
This does make me wonder why you're doing a geocode lookup on the exact same address 20 times in a row?
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