Basically after reading over the code, I interpret that the conditional (i.e. !obj[key].push ) checks if the value at the given key is not an array. ... <看更多>
Prior to ES6, when you need to map keys to values, you often use an object, ... that contains an array of [key, value] for each element in the map object. ... <看更多>
You can provide a single event string , array of events, array of event types ... To trigger a build anytime you push a JavaScript file, you can use a ... ... <看更多>
