CODEWITHSUNDEEP
javascriptboolean
nsane
nsane

Reputation: 1765

How to incorporate a boolean value in a string in JavaScript

Suppose I want to incorporate a boolean value in some string I print out, like

var x=1;
var y=2;
document.write("<p>The result is "+x==y+"</p>");

Normally, this does not give me the requred output. Is there a method to directly print boolean expressions in the document.write() itself? I do not want to use if-else and then assign separate values to variables and then print them. PS - I have just started learning JavaScript.

Upvotes: 1

Views: 2401

Answers (3)

Victor H&#228;ggqvist
Victor H&#228;ggqvist

Reputation: 4486

var x=1;
var y=2;
document.write("<p>The result is "+(x==y)+"</p>");

Will do 

The result is false

Upvotes: 1

Dave Newton
Dave Newton

Reputation: 160181

Put parentheses around the boolean expression:

document.write("<p>The result is " + (x == y) + "</p>");

If you don't, you're doing this:

document.write(("<p>The result is " + x) == (y + "</p>"));

And in general, don't use document.write.

Upvotes: 6

DontVoteMeDown
DontVoteMeDown

Reputation: 21465

This evaluates to a string:

(x==y).toString();

So you can use:

"<p>The result is " + (x==y).toString() + "</p>"

Upvotes: 3

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