Example of initial value of Boolean object in js_javascript skills

Boolean (logical) objects are used to convert non-logical values ​​into logical values ​​(true or false).
Create a Boolean object

Use the keyword new to define a Boolean object. The following code defines a logical object named myBoolean:

var myBoolean=new Boolean()

Note: If the logical object has no initial value or its value is 0, -0, null , "", false, undefined or NaN, then the value of the object is false. Otherwise, its value is true (even when the argument is the string "false")!

All lines of code below create Boolean objects with an initial value of false.

Copy code The code is as follows:

Run result:

false
false
false
false
false
false

All the following lines of code will create a Boolean object with an initial value of true:

Copy the code The code is as follows:

Running results:

true
true
true
true
true
As for this initial value, it is different from that of java and c. Please pay attention when writing the front desk in the future!