核心提示：js中单处替换script type=text/var cityJson = [quot;北京quot;,quot;上海quot;,quot;深圳quot;];//替换后cityJson=[北京quo...
js中单处替换
<script type="text/javascript">
var cityJson = "["北京","上海","深圳"]";
//替换后cityJson="["北京","上海","深圳"]";
cityJson = cityJson.replace("\"", "\"");
</script>
js中全部替换
js字符串替换支持正则表达式替换，用这种方法可以实现全部替换。
<script type="text/javascript">
var cityJson = "["北京","上海","深圳"]";
//正则表达式两端必须加上/，默认只替换一处
//替换后cityJson="["北京","上海","深圳"]";
cityJson = cityJson.replace(/\"/, "\"");
</script>
<script type="text/javascript">
var cityJson = "["北京","上海","深圳"]";
//正则表达式两端必须加上/，末尾是/g可全部替换
//替换后cityJson="["北京","上海","深圳"]";
cityJson = cityJson.replace(/\"/, "\"");
</script>
js中普通字符串转换成Json
<script type="text/javascript">
var cityJson = "["北京","上海","深圳"]";
cityJson = cityJson.replace(/\"/, "\"");
//JSON.parse()可将普通字符串转换为Json字符串
//var array = ["北京","上海","深圳"];
var array = JSON.parse(cityJson);
for (var item in array) {
if (array[item] == "北京") {
role = "管理员";
}
}
</script>
