I’m dynamically loading the font weights of selected fonts, but I have to map values to make a Preview feature work. Problem, there are many different naming conventions,
most fonts have thin = 100, but some like Helvetica Neue have thin = 200 and ultraLight = 100 for example. And writing conditions for each font is not really what I’m aiming for 
Is there another way to handle something like that ?
switch (style) {
case 'Thin': value = '100'; break;
case 'UltraLight': value = '100'; break;
case 'Thin Italic': value = '100 Italic'; break;
case 'UltraLight Italic': value = '100 Italic'; break;
case 'Extra Light': value = '200'; break;
case 'Extra Light Italic': value = '200 Italic'; break;
case 'ExtraLight Italic': value = '200 Italic'; break;
case 'Light': value = '300'; break;
case 'Light Italic': value = '300 Italic'; break;
case 'Light Oblique': value = '300 Italic'; break;
case 'Regular':
case '400': value = '400'; break;
case 'Book': value = 'Book'; break;
case 'Book Italic': value = 'Book Italic'; break;
case 'Medium': value = '500'; break;
case 'Medium Italic': value = '500 Italic'; break;
case 'Semi Bold': value = '600'; break;
case 'Semi Bold Italic': value = '600 Italic'; break;
case 'SemiBold Italic': value = '600 Italic'; break;
case 'Bold': value = '700'; break;
case 'Condensed Bold': value = '700'; break;
case 'Bold Italic': value = '700 Italic'; break;
case 'Bold Oblique': value = '700 Italic'; break;
case 'Extra Bold': value = '800'; break;
case 'Extra Bold Italic': value = '800 Italic'; break;
case 'ExtraBold Italic': value = '800 Italic'; break;
case 'Black': value = '900'; break;
case 'Condensed Black': value = '900'; break;
case 'Black Italic': value = '900 Italic'; break;
default: value = style;
}