Question

我正在尝试创建一个代码片段，从数据库中获取谷歌地图对象，如位置，标记文本，并将其添加到html数据属性，以便我可以在javascript中轻松使用它们

我无法让js将json理解为json，而是将其视为字符串

	jQuery('.map_canvazz').each(function(i,elem) {
		latPos			=	jQuery(this).attr("data-lat");
		longPos			=	jQuery(this).attr("data-long");
		infoDisplay		=	jQuery(this).attr("data-info");
		var objAddresses=	jQuery(this).attr("data-params");
        
      if(typeof objAddresses != 'undefined'){
			console.log(typeof(objAddresses));
			console.log(objAddresses);
			//array of object is treated as string
            // unable to convert array of objects as json
            // todo :- loop through the object of array
		}
      
      })

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<div class='map_canvazz' id='maper1'   data-params='[{"lat":"-36.758435","long":"144.273174","mapTxt":"<div class=\"mapArea\"><div class=\"lineOneMap\">Beyond Medical Education Victorian Office<\/div><div class=\"lineTwoMap\">37 Rowan Street<br>Bendigo VIC 3550, Australia<br>+61 35441 9300<\/div><\/div>"},{"lat":"1111","long":"222","mapTxt":"test"}]'></div>					</div>

Answer 1

属性值只能是字符串。如果要将JSON字符串转换为JavaScript对象，则应通过JSON.parse()运行它。

Answer 2

使用.data() jq方法。它会将其解析为数组：

＆＃13;

jQuery('.map_canvazz').each(function(i, elem) {
  var objAddresses = jQuery(this).data("params");
  for (var i = 0; i < objAddresses.length; i++) {
    var obj = objAddresses[i];
    console.log(obj.lat, obj.long, obj.mapTxt);
  }
})

＆＃13;

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<div class='map_canvazz' id='maper1' data-params='[{"lat":"-36.758435","long":"144.273174","mapTxt":"<div class=\"mapArea\"><div class=\"lineOneMap\">Beyond Medical Education Victorian Office<\/div><div class=\"lineTwoMap\">37 Rowan Street<br>Bendigo VIC 3550, Australia<br>+61 35441 9300<\/div><\/div>"},{"lat":"1111","long":"222","mapTxt":"test"}]'></div>
</div>

＆＃13;

html 5属性作为被视为字符串的对象数组

2 个答案: