Pre and Post Increment and Decrement: Difference between revisions

← Older edit Newer edit →

VisualWikitext

Revision as of 07:46, 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

@@ Line 17: / Line 17: @@
 <span style="color:#a52a2a;"><span style="font-size: 12px;">'''Examples'''</span></span>
+<br>
+<span style="color:#000000;" />
-<span style="color:#000000;">number a = 1;</span>
+<source lang="">number a = 1;
+number b;
-<span style="color:#000000;">number b;</span>
+b = ++a;
+print(b);               // 2
-<span style="color:#000000;">b = ++a;</span>
+print(a);               // 2
+b = --a;
-<span style="color:#000000;">print(b);&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span style="color:#008000;">// 2</span>
+print(b);               // 1
+print(a);               // 1</source>
-<span style="color:#000000;">print(a);&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span style="color:#008000;">// 2</span>
+<span style="color:#008000;" />
-<span style="color:#000000;">b = --a;</span>
-<span style="color:#000000;">print(b);&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color:#008000;"> // 1</span>
-<span style="color:#000000;">print(a);&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span style="color:#008000;">// 1</span>
 &nbsp;