Eval function

Javascript eval() function

eval(new String('2 + 2')); // returns a String object containing "2 + 2"
eval('2 + 2');             // returns 4

Source: developer.mozilla.org

Eval function

#Perfect if you want to store a mathematical expression without defining the
#variables used:
my_function = "5x**2 + 8x - 2"  #I want to define the function cleanly as a
                                #   variable
#insert definition of other varianles here
#insert other code here
def f(x):                       #Defining the function as the funtion f(x)                  
  return eval(my_function)    #Returning my_function with the x in f(x) as x

print(f(0))  #Printing f(0), thereby returning my_function with 0 as x
#Returns -2

Convert string of expression in to expression in javascript

eval(string)

Source: developer.mozilla.org

The eval() function

console.log(eval('2 + 2'));
// expected output: 4

console.log(eval(new String('2 + 2')));
// expected output: 2 + 2

console.log(eval('2 + 2') === eval('4'));
// expected output: true

console.log(eval('2 + 2') === eval(new String('2 + 2')));
// expected output: false

Source: roblox.com

Similar codes

7 votes150 views6 answers
What does enumerate do in python
Python
38 votes156 views3 answers
Python sleep for 1 minute
Python
1 vote141 views1 answer
Program to tell if a number is a perfect square
Python
0 vote143 views1 answer
Get the time of 1 minute later in python
Python
14 votes148 views6 answers
Install django
Python
10 votes142 views3 answers
Create a role with discord.py
Python
0 vote161 views2 answers
How to get username discord ext python
Python
0 vote151 views1 answer
Python regex remove digits from string
Python
23 votes154 views4 answers
Python delete white spaces
Python
0 vote179 views1 answer
Seaborn countplot hue stacked
Python