Tell us what’s happening:
I completed the section initializing variables a, b, and c without problem. What I don’t understand is the code under // Do not change code below this line.
How does a = a + 1 work? or b = b + 5? I’m interpreting it as a math equation (“a” could not equal “a + 1”). What is this for and what am I missing?
Your code so far
// Initialize these three variables
var a = 5;
var b = 10;
var c = "I am a";
// Do not change code below this line
a = a + 1;
b = b + 5;
c = c + " String!";
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The var a = 7; returns a value of 7.
a = a + 1; would return 8 because the code is telling the computer to complete the equation a + 1 and assign the new value to a.
a === a + 1; says the value is expressly 8, which is false because it was initialized at 7.
a = a === a + 1; still false. you are just making a false statement equal the var a.
This is a bit of extra-credit because it requires you to understand associativity. The assignment operator is right-associative, meaning that everything on the right of the = is evaluated before it is assigned to the variable.
