Pre and Post Increment and Decrement: Difference between revisions
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<br> | <br> | ||
<source lang=" | <source lang="javascript">number a = 1; | ||
number b; | number b; | ||
b = ++a; | b = ++a; | ||
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print(a); // 1</source> | print(a); // 1</source> | ||
| <source lang="javascript">number c = 3; | ||
number d; | |||
< | d = c++; | ||
print(d); // 3 | |||
print(c); // 4 | |||
d = c--; | |||
print(d); // 4 | |||
print(c); // 3</source> | |||
[[Category:Operators]] | [[Category:Operators]] | ||
Revision as of 07:51, 14 September 2011
Array : The array object
++x is pre-increment and --x is pre-decrement
x++ is post-increment and x-- is post-decrement
With ++x and --x: means x is incremented BEFORE being used.
With x++ and x--: means x is incremented AFTER being used.
Examples
number a = 1;
number b;
b = ++a;
print(b); // 2
print(a); // 2
b = --a;
print(b); // 1
print(a); // 1
number c = 3;
number d;
d = c++;
print(d); // 3
print(c); // 4
d = c--;
print(d); // 4
print(c); // 3