Using JavaScript variable while accessing a Jinja template value
flask, javascript, jinja2, python
Solution
Jinja variables are ONLY set at render time and what you are trying to do is impossible.
This is pseudo code, but you could potentially declare a js variable with your jinja json and access that:
var config = {{ config | tojson }};
function dispDetails()
{
titleStr = "firstTitle";
console.log(config[titleStr]);
}
Problem
I am using `python jinja2` to pass `json` into a `HTML` file. The `json` I pass is similar as below, ``` result = { "config":{ "firstTitle" : "Report" } } ``` In my `HTML` file I have a `javascript` function as follows which works as expected, ``` function dispDetails() { //This works as expected //It print 'Report' in the console console.log('{{ config.firstTitle }}'); } ``` But if my `javascript` function is modified as to include a `javascript variable` the code is throwing erros, ``` function dispDetails() { //Error thrown : jinja2.exceptions.TemplateSyntaxError: expected name or number titleStr = "firstTitle"; console.log('\'{{ config.'+titleStr+' }}\''); } ``` I have tried various ways to get this working, not sure where I am going wrong and would need some guidance on the same.