cast - Casts a value in a specific type
(int) (double) (string) (bool)
This function is used to change the type of a variable into another one. The "cast" of an array into a double or an integer returns the number of elements in the array. The "cast" of an array into a string returns the JSON equivalent to this array.
Casting a double to an int might cause some precision issue as seen in this example:
amt = 64.24;
"The amount = "; amt; "\n";
amt *= 100.0;
"multiplied by 100:="; amt;"\n";
amt = (int)amt;
amt;"\n";
Which result in
The amount = 64.24
multiplied by 100:=6424
6423
The correct way to implement this is:
amt = 64.24;
"The amount = "; amt; "\n";
amt *= 100.0;
"multiplied by 100:="; amt;"\n";
amt = round(amt);
amt = (int)amt;
amt;"\n";
Note: In the followings examples, the _ between the { should be removed to make it work.
{_{a=undefined; (int) a; }} return 0
{_{a=null; (int) a; }} return 0
{_{a=[1,2,3]; (int) a; }} return 3
{_{a={x:1,y:2}; (int) a; }} return 2
{_{a=true; (int) a; }} return 1
{_{a=false; (int) a; }} return 0
{_{a=7.12345; (int) a; }} return 7
{_{a='7.1'; b = (int) a; b;}} return 7
{_{a='7'; b = (int) a; b;}} return 7
{_{a=7; b = (int) a; b;}} return 7
{_{a=7.12345; b = (int) a; b;}} return 7
{_{a=undefined; (float) a; }} return 0
{_{a=null; (float) a; }} return 0
{_{a=[1,2,3]; (float) a; }} return 3
{_{a={x:1,y:2}; (float) a; }} return 2
{_{a=true; (float) a; }} return 1
{_{a=false; (float) a; }} return 0
{_{a=7.12345; (float) a; }} return 7.12345
{_{a='7.1'; b = (float) a; b;}} return 7.1
{_{a='7'; b = (float) a; b;}} return 7
{_{a=7; b = (float) a; b;}} return 7
{_{a=7.12345; b = (float) a; b;}} return 7.12345
{_{a=undefined; (bool) a; }} return false
{_{a=null; (bool) a; }} return false
{_{a=[1,2,3]; (bool) a; }} return true
{_{a=[]; (bool) a; }} return false
{_{a={x:1,y:2}; (bool) a; }} return true
{_{a={}; (bool) a; }} return false
{_{a=true; (bool) a; }} return true
{_{a=false; (bool) a; }} return false
{_{a=7.12345; (bool) a; }} return true
{_{a='7.1'; b = (bool) a; b;}} return true
{_{a=''; b = (bool) a; b;}} return false
{_{a='7'; b = (bool) a; b;}} return true
{_{a='0'; b = (bool) a; b;}} return false
{_{a=7; b = (bool) a; b;}} return true
{_{a=7.12345; b = (bool) a; b;}} return true
{_{a=undefined; (string) a; }} return undefined
{_{a=null; (string) a; }} return
{_{a=[1,2,3]; (string) a; }}",q(\[1,2,3\]),0);
{_{a={x:1,y:2}; (string) a; }}",q(.*"x":1.*}),0);
{_{a={x:1,y:2}; (string) a; }}",q(.*"y":2.*}),0);
{_{a=true; (string) a; }} return true
{_{a=false; (string) a; }} return false
{_{a=7.12345; (string) a; }} return 7.12345
{_{a='7.1'; b = (string) a; b;}} return 7.1
{_{a='7'; b = (string) a; b;}} return 7
{_{a=7; b = (string) a; b;}} return 7
{_{a=7.12345; b = (string) a; b;}} return 7.12345
Written by Pierre Laplante and Caroline Laplante, <laplante@sednove.com>
1.0 2014-09-09 21:24:14 laplante@sednove.com