Javascript ES6 Const can be changed when it's not allowed -


i'm playing around es6 , know const values cannot changed/reasigned. in case, why allowed change?

{    const name = 'unchangable';    sayname = (name) => {      console.log(name);    }  }  sayname('changed');

it's not changing, print value pass function not const name.

example:

{     const name = 'unchangable';     sayname = (newname) => {       name = newname; // make error     }    }    sayname('new name')

where code equal code blow 

{     const name = 'unchangable';     sayname = (somename) => {        // there  no relationship between `somename` , const `name`       console.log(somename);      }    }    sayname('new name');


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