Modify object

Hello

Let’s imagine we’re having an object:

{% set object = {
    title: 'title',
    content: 'content'
} %}

Is there any way to modify it’s properties without overriding whole object?

For example, like:

{% set object.title = 'New title' %}

or to add another key:

{% set object.test = 'New key value' %}

Currently such attempts will return error TypeError: Cannot call method 'charAt' of undefined, of course.

Now I wonder, is there any workaroud for it, or it isn’t possible and won’t be ever possible too?

If I do understand it right, jinja has such possibility, with do block http://stackoverflow.com/questions/11047886/modifying-dictionary-attributes-in-jinja2

[jan-dolejsi]

This looks simpler and sufficient for this case:

env.addFilter('setAttribute', function(dictionary, key, value) {
            dictionary[key] = value;
            return dictionary;
        });

Usage

{% set myDict = {"key1": 0, "key2": 0, "key3": 0}%}
{% set myDict = myDict|setAttribute('key2', 123) %}
{{myDict['key2']}}

… prints “123” as expected.

[ArmorDarks]

@jan-dolejsi the output is correct. You’ve set key2 to 123, and it prints 123 afterward. What did you expect?