Number formatting fails in strict mode

[ashubham]

When bundling for ES6 modules, the scripts are by default loaded in 'strict mode'. The number formatting in globalize seems to be violating strict mode in these lines:

https://github.com/globalizejs/globalize/blob/master/src/number/format-properties.js#L74

properties[ 2 ] = negativeSuffix[ 2 ] = 1; // minimumIntegerDigits
properties[ 3 ] = negativeSuffix[ 3 ] = 0; // minimumFractionDigits
properties[ 4 ] = negativeSuffix[ 4 ] = 0; // maximumFractionDigits

It fails with TypeError: Cannot create property '2' on string ''