Text Mask

mask.js

function mask(value, mask){	
    let i = 0;
  
    let v = value.toString();
    
    const removeChar = mask.split('').filter(function(item){
  	    return item != '#';
    });
  
    for(const a of removeChar){
  	    v = v.replace(a, '')
    }
    
    if(v.length = mask.length)
  	    return value;
   
   return mask.replace(/\#/g, () => v[i++] || '')
}