[javascript] String 프로토타입 정리

String 프로토타입 정리

/*--------------------------------------------------------------------------------*\

 *  스트링 프로토타입

\*--------------------------------------------------------------------------------*/

//-----------------------------------------------------------------------------

// 문자의 좌, 우 공백 제거

// @return : String

//-----------------------------------------------------------------------------

String.prototype.trim = function() {

    return this.replace(/(^\s*)|(\s*$)/g, "");

}

//-----------------------------------------------------------------------------

// 문자의 좌 공백 제거

// @return : String

//-----------------------------------------------------------------------------

String.prototype.ltrim = function() {

    return this.replace(/(^\s*)/, "");

}

//-----------------------------------------------------------------------------

// 문자의 우 공백 제거

// @return : String

//-----------------------------------------------------------------------------

String.prototype.rtrim = function() {

    return this.replace(/(\s*$)/, "");   

}

//-----------------------------------------------------------------------------

// 문자열의 byte 길이 반환

// @return : int

//-----------------------------------------------------------------------------

String.prototype.byte = function() {

    var cnt = 0;

    for (var i = 0; i < this.length; i++) {

        if (this.charCodeAt(i) > 127)

            cnt += 2;

        else

            cnt++;

    }

    return cnt;

}

//-----------------------------------------------------------------------------

// 정수형으로 변환

// @return : String

//-----------------------------------------------------------------------------

String.prototype.int = function() {

    if(!isNaN(this)) {

        return parseInt(this);

    }

    else {

        return null;   

    }

}

//-----------------------------------------------------------------------------

// 숫자만 가져 오기

// @return : String

//-----------------------------------------------------------------------------

String.prototype.num = function() {

    return (this.trim().replace(/[^0-9]/g, ""));

}

//-----------------------------------------------------------------------------

// 숫자에 3자리마다 , 를 찍어서 반환

// @return : String

//-----------------------------------------------------------------------------

String.prototype.money = function() {

    var num = this.trim();

    while((/(-?[0-9]+)([0-9]{3})/).test(num)) {

        num = num.replace((/(-?[0-9]+)([0-9]{3})/), "$1,$2");

    }

    return num;

}

//-----------------------------------------------------------------------------

// 숫자의 자리수(cnt)에 맞도록 반환

// @return : String

//-----------------------------------------------------------------------------

String.prototype.digits = function(cnt) {

    var digit = "";

    if (this.length < cnt) {

        for(var i = 0; i < cnt - this.length; i++) {

            digit += "0";

        }

    }

    return digit + this;

}

//-----------------------------------------------------------------------------

// " -> &#34; ' -> &#39;로 바꾸어서 반환

// @return : String

//-----------------------------------------------------------------------------

String.prototype.quota = function() {

    return this.replace(/"/g, "&#34;").replace(/'/g, "&#39;");

}

//-----------------------------------------------------------------------------

// 파일 확장자만 가져오기

// @return : String

//-----------------------------------------------------------------------------

String.prototype.ext = function() {

    return (this.indexOf(".") < 0) ? "" : this.substring(this.lastIndexOf(".") + 1, this.length);   

}

//-----------------------------------------------------------------------------

// URL에서 파라메터 제거한 순수한 url 얻기

// @return : String

//-----------------------------------------------------------------------------   

String.prototype.uri = function() {

    var arr = this.split("?");

    arr = arr[0].split("#");

    return arr[0];   

}

 

/*---------------------------------------------------------------------------------*\

 *  각종 체크함수

\*---------------------------------------------------------------------------------*/

//-----------------------------------------------------------------------------

// 정규식에 쓰이는 특수문자를 찾아서 이스케이프 한다.

// @return : String

//-----------------------------------------------------------------------------

String.prototype.meta = function() {

    var str = this;

    var result = ""

    for(var i = 0; i < str.length; i++) {

        if((/([\$\(\)\*\+\.\[\]\?\\\^\{\}\|]{1})/).test(str.charAt(i))) {

            result += str.charAt(i).replace((/([\$\(\)\*\+\.\[\]\?\\\^\{\}\|]{1})/), "\\$1");

        }

        else {

            result += str.charAt(i);

        }

    }

    return result;

}

//-----------------------------------------------------------------------------

// 정규식에 쓰이는 특수문자를 찾아서 이스케이프 한다.

// @return : String

//-----------------------------------------------------------------------------

String.prototype.remove = function(pattern) {

    return (pattern == null) ? this : eval("this.replace(/[" + pattern.meta() + "]/g, \"\")");

}

//-----------------------------------------------------------------------------

// 최소 최대 길이인지 검증

// str.isLength(min [,max])

// @return : boolean

//-----------------------------------------------------------------------------

String.prototype.isLength = function() {

    var min = arguments[0];

    var max = arguments[1] ? arguments[1] : null;

    var success = true;

    if(this.length < min) {

        success = false;

    }

    if(max && this.length > max) {

        success = false;

    }

    return success;

}

//-----------------------------------------------------------------------------

// 최소 최대 바이트인지 검증

// str.isByteLength(min [,max])

// @return : boolean

//-----------------------------------------------------------------------------

String.prototype.isByteLength = function() {

    var min = arguments[0];

    var max = arguments[1] ? arguments[1] : null;

    var success = true;

    if(this.byte() < min) {

        success = false;

    }

    if(max && this.byte() > max) {

        success = false;

    }

    return success;

}

//-----------------------------------------------------------------------------

// 공백이나 널인지 확인

// @return : boolean

//-----------------------------------------------------------------------------

String.prototype.isBlank = function() {

    var str = this.trim();

    for(var i = 0; i < str.length; i++) {

        if ((str.charAt(i) != "\t") && (str.charAt(i) != "\n") && (str.charAt(i)!="\r")) {

            return false;

        }

    }

    return true;

}

//-----------------------------------------------------------------------------

// 숫자로 구성되어 있는지 학인

// arguments[0] : 허용할 문자셋

// @return : boolean

//-----------------------------------------------------------------------------

String.prototype.isNum = function() {

    return (/^[0-9]+$/).test(this.remove(arguments[0])) ? true : false;

}

//-----------------------------------------------------------------------------

// 영어만 허용 - arguments[0] : 추가 허용할 문자들

// @return : boolean

//-----------------------------------------------------------------------------

String.prototype.isEng = function() {

    return (/^[a-zA-Z]+$/).test(this.remove(arguments[0])) ? true : false;

}

//-----------------------------------------------------------------------------

// 숫자와 영어만 허용 - arguments[0] : 추가 허용할 문자들

// @return : boolean

//-----------------------------------------------------------------------------

String.prototype.isEngNum = function() {

    return (/^[0-9a-zA-Z]+$/).test(this.remove(arguments[0])) ? true : false;

}

//-----------------------------------------------------------------------------

// 숫자와 영어만 허용 - arguments[0] : 추가 허용할 문자들

// @return : boolean

//-----------------------------------------------------------------------------

String.prototype.isNumEng = function() {

    return this.isEngNum(arguments[0]);

}

//-----------------------------------------------------------------------------

// 아이디 체크 영어와 숫자만 체크 첫글자는 영어로 시작 - arguments[0] : 추가 허용할 문자들

// @return : boolean

//-----------------------------------------------------------------------------

String.prototype.isUserid = function() {

    return (/^[a-zA-z]{1}[0-9a-zA-Z]+$/).test(this.remove(arguments[0])) ? true : false;

}

//-----------------------------------------------------------------------------

// 한글 체크 - arguments[0] : 추가 허용할 문자들

// @return : boolean

//-----------------------------------------------------------------------------

String.prototype.isKor = function() {

    return (/^[가-힣]+$/).test(this.remove(arguments[0])) ? true : false;

}

//-----------------------------------------------------------------------------

// 주민번호 체크 - arguments[0] : 주민번호 구분자

// XXXXXX-XXXXXXX

// @return : boolean

//-----------------------------------------------------------------------------

String.prototype.isJumin = function() {

    var arg = arguments[0] ? arguments[0] : "";

    var jumin = eval("this.match(/[0-9]{2}[01]{1}[0-9]{1}[0123]{1}[0-9]{1}" + arg + "[1234]{1}[0-9]{6}$/)");

     if(jumin == null) {

         return false;

     }

     else {

         jumin = jumin.toString().num().toString();

     }

     // 생년월일 체크

     var birthYY = (parseInt(jumin.charAt(6)) == (1 ||2)) ? "19" : "20";

     birthYY += jumin.substr(0, 2);

     var birthMM = jumin.substr(2, 2) - 1;

     var birthDD = jumin.substr(4, 2);

     var birthDay = new Date(birthYY, birthMM, birthDD);

     if(birthDay.getYear() % 100 != jumin.substr(0,2) || birthDay.getMonth() != birthMM || birthDay.getDate() != birthDD) {

         return false;

     }       

     var sum = 0;

     var num = [2, 3, 4, 5, 6, 7, 8, 9, 2, 3, 4, 5]

     var last = parseInt(jumin.charAt(12));

     for(var i = 0; i < 12; i++) {

         sum += parseInt(jumin.charAt(i)) * num[i];

     }

     return ((11 - sum % 11) % 10 == last) ? true : false;

 }

 //-----------------------------------------------------------------------------

 // 외국인 등록번호 체크 - arguments[0] : 등록번호 구분자

 // XXXXXX-XXXXXXX

 // @return : boolean

 //-----------------------------------------------------------------------------

 String.prototype.isForeign = function() {

     var arg = arguments[0] ? arguments[0] : "";

     var jumin = eval("this.match(/[0-9]{2}[01]{1}[0-9]{1}[0123]{1}[0-9]{1}" + arg + "[5678]{1}[0-9]{1}[02468]{1}[0-9]{2}[6789]{1}[0-9]{1}$/)");

     if(jumin == null) {

         return false;

     }

     else {

         jumin = jumin.toString().num().toString();

     }

     // 생년월일 체크

     var birthYY = (parseInt(jumin.charAt(6)) == (5 || 6)) ? "19" : "20";

     birthYY += jumin.substr(0, 2);

     var birthMM = jumin.substr(2, 2) - 1;

     var birthDD = jumin.substr(4, 2);

     var birthDay = new Date(birthYY, birthMM, birthDD);

     if(birthDay.getYear() % 100 != jumin.substr(0,2) || birthDay.getMonth() != birthMM || birthDay.getDate() != birthDD) {

         return false;

     }

     if((parseInt(jumin.charAt(7)) * 10 + parseInt(jumin.charAt(8))) % 2 != 0) {

        return false;

     }

     var sum = 0;

     var num = [2, 3, 4, 5, 6, 7, 8, 9, 2, 3, 4, 5]

     var last = parseInt(jumin.charAt(12));

     for(var i = 0; i < 12; i++) {

         sum += parseInt(jumin.charAt(i)) * num[i];

     }

     return (((11 - sum % 11) % 10) + 2 == last) ? true : false;

 }   

 //-----------------------------------------------------------------------------

 // 사업자번호 체크 - arguments[0] : 등록번호 구분자

 // XX-XXX-XXXXX

 // @return : boolean

 //-----------------------------------------------------------------------------

 String.prototype.isBiznum = function() {

     var arg = arguments[0] ? arguments[0] : "";

     var biznum = eval("this.match(/[0-9]{3}" + arg + "[0-9]{2}" + arg + "[0-9]{5}$/)");

     if(biznum == null) {

         return false;

     }

     else {

         biznum = biznum.toString().num().toString();

     }

     var sum = parseInt(biznum.charAt(0));

     var num = [0, 3, 7, 1, 3, 7, 1, 3];

     for(var i = 1; i < 8; i++) sum += (parseInt(biznum.charAt(i)) * num[i]) % 10;

     sum += Math.floor(parseInt(parseInt(biznum.charAt(8))) * 5 / 10);

     sum += (parseInt(biznum.charAt(8)) * 5) % 10 + parseInt(biznum.charAt(9));

     return (sum % 10 == 0) ? true : false;

 }

 //-----------------------------------------------------------------------------

 // 법인 등록번호 체크 - arguments[0] : 등록번호 구분자

 // XXXXXX-XXXXXXX

 // @return : boolean

 //-----------------------------------------------------------------------------

 String.prototype.isCorpnum = function() {

     var arg = arguments[0] ? arguments[0] : "";

     var corpnum = eval("this.match(/[0-9]{6}" + arg + "[0-9]{7}$/)");

     if(corpnum == null) {

         return false;

     }

     else {

         corpnum = corpnum.toString().num().toString();

     }

     var sum = 0;

     var num = [1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2]

     var last = parseInt(corpnum.charAt(12));

     for(var i = 0; i < 12; i++) {

         sum += parseInt(corpnum.charAt(i)) * num[i];

     }

     return ((10 - sum % 10) % 10 == last) ? true : false;

 }

 //-----------------------------------------------------------------------------

 // 이메일의 유효성을 체크

 // @return : boolean

 //-----------------------------------------------------------------------------

 String.prototype.isEmail = function() {

     return (/\w+([-+.]\w+)*@\w+([-.]\w+)*\.[a-zA-Z]{2,4}$/).test(this.trim());

 }

 //-----------------------------------------------------------------------------

 // 전화번호 체크 - arguments[0] : 전화번호 구분자

 // @return : boolean

 //-----------------------------------------------------------------------------

 String.prototype.isPhone = function() {

     var arg = arguments[0] ? arguments[0] : "";

     return eval("(/(02|0[3-9]{1}[0-9]{1})" + arg + "[1-9]{1}[0-9]{2,3}" + arg + "[0-9]{4}$/).test(this)");

}

//-----------------------------------------------------------------------------

// 핸드폰번호 체크 - arguments[0] : 핸드폰 구분자

// @return : boolean

//-----------------------------------------------------------------------------

String.prototype.isMobile = function() {

    var arg = arguments[0] ? arguments[0] : "";

    return eval("(/01[016789]" + arg + "[1-9]{1}[0-9]{2,3}" + arg + "[0-9]{4}$/).test(this)");

}

[출처] String 프로토타입 정리 (강추!!!                )|작성자 OneWay

출처 : http://blog.naver.com/agapeuni