javascript - calling ajax function that is outside document.ready -

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i trying populate google map. here's of code. why won't ajax request work? works fine when stick in document.ready() anonymous function, want reuse code, need able call it.

$(document).ready(function(){      var map = new google.maps.map(document.getelementbyid('map'), {         center: {lat: 49.105, lng: -97.568},         zoom: 4       });  gettornadoes("test", "test", "yes");              });  // tornado json file     function gettornadoes (test, test2, test3) {//these not real parameters          $.getjson('water_pollutants.php', function(data){              $.each(data.features, function(index, feature){                  var longitude = feature.properties.longitude;                 var latitude = feature.properties.latitude;                 ...

i error invalidvalueerror: setmap: not instance of map; , not instance of streetviewpanorama. however, don't think issue google maps. i've had similar issues in past when trying refer ajax functions declared outside document.ready().

i use google maps api also, here 1 recommendation:

change

$(document).ready(function(){        var map = new google.maps.map(document.getelementbyid('map'), {         center: {lat: 49.105, lng: -97.568},         zoom: 4       });

to:

var map;  $(document).ready(function(){        map = new google.maps.map(document.getelementbyid('map'), {         center: {lat: 49.105, lng: -97.568},         zoom: 4       });

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