nl_tokens: 定义函数
pl_tokens: function debounced ( ... args ) { let now = + new Date ( ) , remaining ; // 获取剩余时间 if ( ! lastCalled && ! leading ) { remaining = wait ; } else { remaining = wait - ( now - lastCalled ) ; } // 区分是否立即执行 if ( remaining <= 0 || remaining > wait ) { timeId && clearTimeout ( timeId ) ; lastCalled = now ; result = callback . apply ( this , args ) ; lastContext = lastArgs = timeId = null ; } else if ( trailing ) { // 更新参数 lastContext = this ; lastArgs = args ; // 设置延时 timeId && clearTimeout ( timeId ) ; timeId = setTimeout ( ( ) => { lastCalled = 0 ; <mask> = callback . apply ( lastContext , lastArgs ) ; lastContext = lastArgs = timeId = null ; } , wait ) ; } // 返回结果 return result ; }