• raymond (6/6) Dec 09 2008 how to check if array key exist in array or not? for example
• Ellery Newcomer (2/10) Dec 09 2008 if("test1" in t) writefln("exists");
• Spacen Jasset (6/17) Dec 10 2008 Also useful:
• Jarrett Billingsley (7/12) Dec 10 2008 Almost; it's char[]* value, since in always returns a Value* type.

raymond <rbs081 pumsoft.net> writes:

how to check if array key exist in array or not? for example

	char[] [char[]] t;
	t["tes1"]="val1";
	t["tes2"]="val2";
	t["tes3"]="val3";

	if (t["test1"]) writefln("NONE");

Ellery Newcomer <ellery-newcomer utulsa.edu> writes:

raymond wrote:
 how to check if array key exist in array or not? for example
 
 	char[] [char[]] t;
 	t["tes1"]="val1";
 	t["tes2"]="val2";
 	t["tes3"]="val3";
 
 	if (t["test1"]) writefln("NONE");

if("test1" in t) writefln("exists");

Spacen Jasset <spacenjasset yahoo.co.uk> writes:

Ellery Newcomer wrote:
 raymond wrote:
 how to check if array key exist in array or not? for example

     char[] [char[]] t;
     t["tes1"]="val1";
     t["tes2"]="val2";
     t["tes3"]="val3";

     if (t["test1"]) writefln("NONE");

 
 if("test1" in t) writefln("exists");

Also useful:

char[] value;
if ( (value = "test1" in t) ) {
	writefln(value);
}

"Jarrett Billingsley" <jarrett.billingsley gmail.com> writes:

On Wed, Dec 10, 2008 at 12:16 PM, Spacen Jasset
<spacenjasset yahoo.co.uk> wrote:
 Also useful:

 char[] value;
 if ( (value = "test1" in t) ) {
        writefln(value);
 }

Almost; it's char[]* value, since in always returns a Value* type.
(and it would then be writefln(*value))

Aaalso useful:

if(auto value = "test1" in t)
    writefln(*value);