日安 says to Happy Web Developer
var result = result1.filter(function(o1){ // filter out (!) items in result2 return !result2.some(function(o2){ return o1.id === o2.id; // assumes unique id }); }).map(function(o){ // use reduce to make objects with only the required properties // and map to apply this to the filtered array as a whole return props.reduce(function(newo, name){ newo[name] = o[name]; return newo; }, {}); }); 這個我看很久看不太懂 QQ