how to pass a variable from href to flask [duplicate]

Answer 1

Jinja gets rendered on the server so you can't mix and match it with javascript. Try something like this:

var counts = {{ test|tojson }},
    // before the HTML file gets to the browser this line will be:
    // baseURL = "/ques/REPLACE"
    baseURL = "{{ url_for('ques', idd='REPLACE') }}";

for (i = 1; i < counts.length; i = i+2) {
    var url = baseURL.replace('REPLACE', counts[i-1]);
    document.write("" + 
                   counts[i] + "

");
}

Otherwise you'll need to build the URL directly in Javascript.

A better way of doing it would be to use request arguments:

@app.route('/ques/')
def ques():
    # url is: /ques/?idd=ABC
    idd = request.args.get('idd', default='', type=str)
    print idd

Javascript:

var counts = {{ test|tojson }},
    baseURL = "{{ url_for('ques') }}";

for (i = 1; i < counts.length; i = i+2) {
    var url = baseURL + '?idd=' + counts[i-1];
    document.write("" + 
                   counts[i] + "

");
}