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

0 vote174 views1 answer
Autoscrapper import
Python
2 votes193 views1 answer
How to maker loops coun t in second in pytho
Python
1 vote168 views1 answer
Code hand tracking
Python
1 vote191 views1 answer
Prevent list index out of range python
Python
2 votes191 views1 answer
How to change background color in python turtle
Python
2 votes181 views1 answer
Create an array string using for in python
Python
6 votes174 views4 answers
Import user in django
Python
4 votes187 views2 answers
Force two decimal places python
Python
62 votes177 views6 answers
Os get current directory
Python
0 vote327 views1 answer
Bulk upload with dictionary or list in django moels
Python Django