Lesson: 08 | Const

Notes

Variables defined with const cannot be redeclared and reassigned.

The following code will give an error since the variable PI is reassigned which isn't possible.

const PI = 3.1415;
PI = 3.14;

JavaScript const variables must be assigned a value at the time they are declared:

const PI = 3.14;

Note: We must declared a variable using const only when we are sure that the value of of the variable will not change.

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