2019.1

First, wrap the content that contains all of the placeholders in one (inline) Box and give that Box
or Span an ID (on the Attributes pane). Next, create a script that uses that ID as selector. Then
replace all placeholders in the script and put the content back in the template.
This is similar to working with snippets, but in this case the element is extracted from the actual
template.
Example
The following script replaces all of the placeholders on a postcard. It takes advantage of the
JavaScript replace() command. Assuming that the ID of the block that requires personalization
is promoblock, the script has to have its selector set to #promoblock.
var block = results.html();
var data = record.fields;
block = block.replace('@name@',data.first + ' ' + data.last);
block = block.replace('@address@',data.address);
block = block.replace('@zip@',data.zip);
block = block.replace('@city@',data.city);
block = block.replace('@country@',data.country);
block = block.replace('@saldo@',data.saldo);
block = block.replace('@promo@',data.promo);
block = block.replace('@customercode@', data.customercode);
…
results.html(block);
The first line retrieves the HTML of the promo block and stores it in a variable called block. To
make the code more readible, the fields from the record are stored in a variable named data.
After replacing the placeholders by values, the script replaces the HTML of the promoblock with
the personalized string.
Other resources
There are also many resources online to help learn about JavaScript performance and coding
mistakes. See for example:
l JavaScript performance
l The 10 most common JavaScript mistakes
l Tips for writing efficient JavaScript.
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