如何在javascript getElementById（）中使用python变量？

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.

Answer 1

you can use format :

element = 'id_of_element'

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

Answer 2

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+"""')
"""