알면 좋은 자바스크립트 간단한 팁,
true == 1; //true! (converts true to bit value 1) true - false === 1 //true!!! "2" + 2; //22! "2" - 2; //0 "2" - - 2; //4 NaN == NaN; //false - this one sort of makes sense since NaN is any non-Number cast to a number NaN NaN; //false - whatever! "" == 0 //true undefined == null //false! "0" == 0 //true! "false" = false //false!!!' '\t\r\n ' == 0 //true!!! if(-1) {....} //true if("") {....} //fa..
웹개발/Javascript
2011. 1. 8. 23:51