A Javascript properties are objects variables used to hold the specific value type. As its name says, this is simply property name declaration as string with any type of value assign to it. For example, the following object obj has a property whose name is the string "name" and it has value "Jimi". Similarly "age" is property name and "21" is value assigned to it.
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In Javascript, you can add any number of property to the existing object. You need to give name of the new property and value assign to it. The below example creating new property "address" to the existing object "Person" with value as "12-13/A1". New "Person" object has three properties name, age and address.
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In Javascript you can access or read object property via its name. If you see below example, it is accessing all three property of the "Person" object.
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In Javascript delete keyword is use to delete the existing property from object.
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You can loop through the object properties by using for..in loop to access all the properties.
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