Latest revision as of 07:05, 14 December 2011

Pre and Post Increment and Decrement

++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 1: / Line 1: @@
-'''Pre and Post Increment and Decrement'''
+{{HelpFiles}}
+= Pre and Post Increment and Decrement  =
-&nbsp;
+<span style="color:#000000;">++x is pre-increment&nbsp; and --x is pre-decrement</span>
-<span style="color:#000000;">++x is pre-increment&nbsp; and --x is pre-decrement</span>
+<span style="color:#000000;">x++ is post-increment and x-- is post-decrement</span>
-<span style="color:#000000;">x++ is post-increment and x-- is post-decrement</span>
+<span style="color:#000000;">With ++x and --x: &nbsp;means x is incremented '''BEFORE''' being used.</span>
-&nbsp;
+<span style="color:#000000;">With x++ and x--: &nbsp;means x is incremented '''AFTER''' being used.</span>
-<span style="color:#000000;">With ++x and --x: &nbsp;means x is incremented '''BEFORE''' being used.</span>
+==== <span style="color:#a52a2a;"><span style="font-size: 12px;">'''Examples'''</span></span>  ====
-<span style="color:#000000;">With x++ and x--: &nbsp;means x is incremented '''AFTER''' being used.</span>
+<source lang="javascript">number a = 1;
+number b;
+b = ++a;
+print(b);               // 2
+print(a);               // 2
+b = --a;
+print(b);               // 1
+print(a);               // 1</source>&nbsp;
-&nbsp;
+<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>
-<span style="color:#a52a2a;"><span style="font-size: 12px;">'''Examples'''</span></span>
+[[Category:Operators]]
-&nbsp;
-<span style="color:#000000;">number a = 1;</span>
-<span style="color:#000000;">number b;</span>
-<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;">// 2</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;">// 2</span>
-<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;
-<span style="color:#000000;">number c = 3;</span>
-<span style="color:#000000;">number d;</span>
-<span style="color:#000000;">d = c++;</span>
-<span style="color:#000000;">print(d);&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp; </span><span style="color:#008000;">// 3</span>
-<span style="color:#000000;">print(c); &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;</span><span style="color:#008000;">// 4</span>
-<span style="color:#000000;">d = c--;</span>
-<span style="color:#000000;">print(d);&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;</span><span style="color:#008000;">// 4</span>
-<span style="color:#000000;">print(c);&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span style="color:#008000;">// 3</span>
-[[Category:Data_Types_Literals_and_Variables]]