How to use python variable in javascript getElementById()?

Question

I want to pass python variable in to javascript. The variable value is an element id and so I want to pass this variable having element id to javascript "getElementById"

I tried -

element = 'id_of_element'

js = """
var element = document.getElementById(""" + element + """)
"""

But I get error - WebDriverException: Message: u'element is null'. Please advise. I am newbee to this.

user3613720 · Accepted Answer · 2014-11-03 16:45:00Z

1

I found the solution -

You have to use a single quote around around the three double quotes

Like this -

element = 'id_of_element'
js = """
var element = document.getElementById('"""+element+"""')
"""

answered Nov 3, 2014 at 16:45

user3613720

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Comments

Kasravnd · Accepted Answer · 2014-11-05 08:54:01Z

0

you can use format :

element = 'id_of_element'

js = """
var element = document.getElementById("{}")
""".format(element)

edited Nov 5, 2014 at 8:54

answered Oct 31, 2014 at 21:19

Kasravnd

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1 Comment

user3613720 Over a year ago

It's giving me error - var element = document.getElementById("""{element}"""); ^ SyntaxError: invalid syntax

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