BooleanFormat

Description

This function takes a value and returns "true" or "false" depending on the value.

Returns

True, for a non-zero value; False for zero, false, and an empty string ("" ).

BooleanFormat(25) returns true. BooleanFormat(false) returns false.

The function throws an exception when you pass any string other than empty string ("" ).

For example, BooleanFormat("Hello") throws an exception.

But, BooleanFormat("true") or BooleanFormat("yes") returns true.

Similarly, BooleanFormat("false") or BooleanFormat("no") returns false.

Null value

  • BooleanFormat("null"): Throws an exception because null is treated as a string.
  • BooleanFormat(null): Null is treated as a variable, so will search for the value. If no such variable exists, an exception is thrown.
  • BooleanFormat(javacast("null","null")): Here actual null is being passed, and hence it will return false.

Category

History

New in Adobe ColdFusion (2016 release)

Syntax

BooleanFormat(value)

Parameters

Parameter

Description

value

A number, boolean value, null, or an empty string.

Example

<cfscript>
 val=0;
 str="1123";
 writeoutput(BooleanFormat(val)); // returns false
 writeoutput(BooleanFormat(str)); // returns true
</cfscript>

Using member function

<cfscript>
       val=false;
       WriteOutput(val.BooleanFormat());
</cfscript>

 Adobe

更快、更轻松地获得帮助

新用户?

Adobe MAX 2024

Adobe MAX
创意大会

10 月 14 日至 16 日迈阿密海滩及线上

Adobe MAX

创意大会

10 月 14 日至 16 日迈阿密海滩及线上

Adobe MAX 2024

Adobe MAX
创意大会

10 月 14 日至 16 日迈阿密海滩及线上

Adobe MAX

创意大会

10 月 14 日至 16 日迈阿密海滩及线上