CODEWITHSUNDEEP
javascript
DTH
DTH

Reputation: 49

Find code between two lines

I am looking for a way to get an alert when a certain code is between two specific lines.

Here is the code:

var stage = new swiffy.Stage(document.getElementById('swiffycontainer'),
      swiffyobject, {});
        stage.setFlashVars("clickTAG=%%CLICK_URL_ESC%%%%DEST_URL%%");
  stage.start();

Is there a way to open the webpage and showing an alert if

stage.setFlashVars("clickTAG=%%CLICK_URL_ESC%%%%DEST_URL%%");"

is in the code and not if it is between

swiffyobject, {}); and stage.start();?

Upvotes: 0

Views: 117

Answers (2)

mamoo
mamoo

Reputation: 8166

Assuming you're running your code in a browser env. I guess there's no easy way for you to do that. You can however:

  • Decorate stage.setFlashVars with your implementation and intercept whether the method has been called with a specific parameter value. This will however not tell you if the code is executed before stage.start() or not.
  • If your code is included in a script tag in the page, you can select that script tag, read its content and parse it (quick example here: http://jsfiddle.net/9vudjwba/).

Both approaches looks really overkill to me. What problem are you trying to solve by doing that?

Upvotes: 0

Mosh Feu
Mosh Feu

Reputation: 29287

If this script is inside page but not in external script (other file than the page file) you can do like this:

$(function() {
  var script = $('script:contains(var stage = new swiffy.Stage(document.getElementById)');
  alert(script.length);
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script>
  var stage = new swiffy.Stage(document.getElementById('swiffycontainer'),
      swiffyobject, {});
        stage.setFlashVars("clickTAG=%%CLICK_URL_ESC%%%%DEST_URL%%");
  stage.start();
</script>

For the second check, you need to use Regex and it more complicated.

Upvotes: 1

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