JS Type Conversion
JS Type Conversion
In JavaScript, type conversion refers to the process of converting one data type to another. Type conversion can happen implicitly or explicitly.
Implicit type conversion, also known as type coercion, occurs when JavaScript automatically converts a value from one data type to another, without requiring any explicit code to perform the conversion. For example, if you try to add a string and a number, JavaScript will automatically convert the number to a string and concatenate the two values.
"5" + 3 // returns "53"
Explicit type conversion, on the other hand, occurs when you use a built-in JavaScript function to convert a value from one data type to another. For example, you can convert a string to a number using the parseInt() function.
parseInt("42") // returns 42
Here are some examples of explicit type conversion functions in JavaScript:
- String(): converts a value to a string
- Number(): converts a value to a number
- Boolean(): converts a value to a boolean
- parseInt(): converts a string to an integer
- parseFloat(): converts a string to a floating-point number
It’s important to note that type conversion can sometimes result in unexpected behavior, so it’s important to be aware of the types of your data and how they are being converted in your code.