废弃原因：属于非标准遗留特性，参数规则和substring、slice不一致，极易混淆，已被纳入ECMA附录B，仅为兼容旧代码保留，不推荐新代码使用。 废弃原因：语义不统一，标准规范已推出语义更清晰的替代方法，部分新版浏览器已逐步移除支持。 废弃原因：编码 ...

From the browser to the back end, the ‘boring’ choice is exciting again. We look at three trends converging to bring SQL back ...

Abstract: We introduce here a large tracking database that offers an unprecedentedly wide coverage of common moving objects in the wild, called GOT-10k. Specifically, GOT-10k is built upon the ...

A BitSet (also called Bitmap or bit vector) is an ideal data structure to implement a set when values being stored are reasonably small integers. It can be orders of magnitude faster than a generic ...

Abstract: In this paper, attempts are made to detect some basic shape of objects using ultrasonic sensor arrays with Artificial Neural Network (ANN). For this purpose two types of ultrasonic sensor ...