I have a js file.
File Name: propoties.js
function simple()
{
alert("simple");
var text = "Control";
}
These is my html code. What i want is alert that text variable in html.
<html>
<script type='text/javascript' src='path/propoties.js'></script>
<script>
simple();
alert(text); /* It is not working */
</script>
</html>
Please help me these. Thank you.
I have a js file.
File Name: propoties.js
function simple()
{
alert("simple");
var text = "Control";
}
These is my html code. What i want is alert that text variable in html.
<html>
<script type='text/javascript' src='path/propoties.js'></script>
<script>
simple();
alert(text); /* It is not working */
</script>
</html>
Please help me these. Thank you.
Share Improve this question asked Jul 3, 2015 at 8:20 user5039263user5039263 1-
5
The
textvariable is declared within thesimple()function. I suggest you read about Javascript variable scope: stackoverflow./questions/500431/… – Rory McCrossan Commented Jul 3, 2015 at 8:23
4 Answers
Reset to default 6Your js file:
var simple=function(){
var textMultiple = {
text1:"text1",
text2:"text2"
};
return textMultiple;
}
In your html:
<html>
<script type='text/javascript' src='./relative/path/to/propoties.js'></script>
<script>
alert(simple().text1);
alert(simple().text2);
</script>
</html>
here is a plunkr demo.
like you did it the "text" variable is only set in the scope of the function "simple" .
you should make the "text" variable global by declaring it outside the function.
var text = "";
function simple()
{
alert("simple");
text = "Control";
}
If you want to alert the text in external file you need to declare the variable as global like below.
var text = "Control";
function simple()
{
text="Changed";
alert("simple");
}
or you can declare the variable using window keyword
function simple()
{
alert("simple");
window.text = "Control";
}
please check in plunker http://plnkr.co/edit/HjkwlcnkPwJZ7yyo55q6?p=preview
Declaring the variable globally will work. ie
var text = "";
function simple()
{
text = "Control";
}
see plunker