JS data type

JS is not the kind of programming language that can explicitly specify (variable or constant) type, when setting the value of the JS data, that is, the type of the (constant or variable) is automatically implied, this design gives the JS variable a great flexibility, because their data types can change with different assigned values. For example, when assigning the number 17 to the variable x, the type of x is number, but if you change your mind and assign "sixteen" to x instead, the variable type is automatically converted to text (string).

JS uses three types of data: Text,number,boolean

JS data type