Is there a way to assign a value from a Java variable to a JavaScript variable? I attempted using the following scripting elements:
<%
double x=23.35;
%>
var temp='<%= x %>';
var temp="<%= x %>";
var temp='${x}';
However, they each produced the following output:
<%= x %>
<%= x %>
${x}
Give this a try, it should be successful. (No need to use '=' within the java code).
var temp=<% x %>;
var temp=<% x %>;
var temp=${x};
After experimenting with various methods, I found that using JSP inside the script tag worked well for me except for one way.
<% double x = 23.35; %>
var temp = <%=x%>;
console.log(temp);
console.log(typeof(temp));
var temp2 = '<%=x%>';
console.log(temp2);
console.log(typeof(temp2));
var temp3 = "<%=x%>";
console.log(temp3);
console.log(typeof(temp3));
I discovered that the key difference lies in how values are assigned to variables. When enclosed in single or double quotes, they are treated as strings, otherwise as numbers. Alternatively, assigning a value using
<c:set name="x" value="23.35" />'${x}'.
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