Javascript best practices - Shortify falsy / truthy checks

Sometimes we need to assign only truthy (not undefined/null/empty) values to our variables.

It is done like this:

if (myVar !== null && myVar !== 'undefined' && myVar !== '') {
   yourVar = myVar;
else {
  yourVar = 'new default value';

This can be optimized as:

yourVar = myVar || 'new default value';

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