<commit_before>function round (val, precision, mode) {
    // http://kevin.vanzonneveld.net
    // +   original by: <NAME>
    // +    revised by: <NAME>
    // +      input by: Greenseed
    // +    revised by: T.Wild
    // %        note 1: Great work. Ideas for improvement:
    // %        note 1:  - code more compliant with developer guidelines
    // %        note 1:  - for implementing PHP constant arguments look at
    // %        note 1:  the pathinfo() function, it offers the greatest
    // %        note 1:  flexibility & compatibility possible
    // *     example 1: round(1241757, -3);
    // *     returns 1: 1242000
    // *     example 2: round(3.6);
    // *     returns 2: 4
    // *     example 3: round(2.835,2);
    // *     returns 3: 2.84

    /* Declare Variables
     * retVal  - temporay holder of the value to be returned
     * V       - String representation of val

     * integer - Integer portion of val
     * decimal - decimal portion of val
     * decp    - characterindex of . [decimal point] inV
     * negative- was val a negative value?
     *
     * _round_half_oe - Rounding function for ROUND_HALF_ODD and ROUND_HALF_EVEN

     * _round_half_ud - Rounding function for ROUND_HALF_UP and ROUND_HALF_DOWN
     * _round_half    - Primary function for round half rounding modes
     */
    var retVal=0,v='',integer='',decimal='',decp=0,negative=false;
    var _round_half_oe = function (dtR,dtLa,even){
        if (even === true) {
            if (dtLa == 50) {
                if ((dtR % 2) === 1) {
                    if (dtLa >= 5) {
                        dtR+=1;
                    } else {
                        dtR-=1;
                    }
                }
            }else if (dtLa >= 5) {
                dtR+=1;
            }
        }else{
            if (dtLa == 5) {
                if ((dtR % 2) === 0) {
                    if (dtLa >= 5) {
                        dtR+=1;
                    }else{
                        dtR-=1;
                    }
                }
            }else if (dtLa >= 5) {
                dtR+=1;
            }
        }

        return dtR;
    };
    var _round_half_ud = function (dtR,dtLa,up) {
        if (up === true) {
            if (dtLa>=5) {
                dtR+=1;
            }
        }else{
            if (dtLa>5) {
                dtR+=1;
            }
        }
        return dtR;
    };
    var _round_half = function (val,decplaces,mode){
    /*Declare variables
         *V       - string representation of Val
         *Vlen    - The length of V - used only when rounding intgerers

         *VlenDif - The difference between the lengths of the original V
         *          and the V after being truncated
         *decp    - character in index of . [decimal place] in V
         *integer - Integr protion of Val
         *decimal - Decimal portion of Val
         *DigitToRound - The digit to round

         *DigitToLookAt- The digit to comapre when rounding
         *
         *round - A function to do the rounding
         */
        var v = val.toString(),vlen=0,vlenDif=0;
        var decp = v.indexOf('.');

        var digitToRound = 0,digitToLookAt = 0;
        var integer='',decimal='';
        var round = null,bool=false;
        switch (mode) {
            case 'up':
                bool = true;
                // Fall-through
            case 'down':
                round = _round_half_ud;
                break;
            case 'even':
                bool = true;
            case 'odd':
                round = _round_half_oe;
                break;
        }
        if (decplaces < 0){ //Int round
            vlen=v.length;

            decplaces = vlen + decplaces;
            digitToLookAt = Number(v.charAt(decplaces));
            digitToRound  = Number(v.charAt(decplaces-1));
            digitToRound  = round(digitToRound,digitToLookAt,bool);
            v = v.slice(0,decplaces-1);
            vlenDif = vlen-v.length-1;

            if (digitToRound == 10){
                v = String(Number(v)+1)+"0";
            }else{
                v+=digitToRound;
            }

            v = Number(v)*(Math.pow(10,vlenDif));
        }else if (decplaces > 0){
            integer=v.slice(0,decp);
            decimal=v.slice(decp+1);
            digitToLookAt = Number(decimal.charAt(decplaces));

            digitToRound  = Number(decimal.charAt(decplaces-1));
            digitToRound  = round(digitToRound,digitToLookAt,bool);
            decimal=decimal.slice(0,decplaces-1);
            if (digitToRound==10){
                v=Number(integer+'.'+decimal)+(1*(Math.pow(10,(0-decimal.length))));
            }else{
                v=Number(integer+'.'+decimal+digitToRound);
            }
        }else{
            integer=v.slice(0,decp);
            decimal=v.slice(decp+1);
            digitToLookAt = Number(decimal.charAt(decplaces));

            digitToRound  = Number(integer.charAt(integer.length-1));
            digitToRound  = round(digitToRound,digitToLookAt,bool);
            decimal='0';
            integer = integer.slice(0,integer.length-1);
            if (digitToRound==10){
                v=Number(integer)+1;
            }else{
                v=Number(integer+digitToRound);
            }
        }
        return v;
    };


    //precision optional - defaults 0
    if (typeof precision == 'undefined') {
        precision = 0;
    }
    //mode optional - defaults round half up
    if (typeof mode == 'undefined') {
        mode = 'PHP_ROUND_HALF_UP';
    }

    if (val < 0){ //Remember if val is negative
        negative = true;
    }else{
        negative = false;
    }

    v = Math.abs(val).toString(); //Take a string representation of val
    decp = v.indexOf('.');        //And locate the decimal point
    if ((decp == -1) && (precision >=0)){
   /* If there is no deciaml point and the precision is greater than 0
         * there is no need to round, return val
         */
        return val;
    }else{
        if (decp == -1){
            //There are no decimals so intger=V and decimal=0
            integer = v;
            decimal = '0';
        }else{
            //Otherwise we have to split the decimals from the integer
            integer = v.slice(0,decp);
            if (precision >= 0){
                //If the precision is greater than 0 then split the decimals from the integer
                //We truncate the decimals to a number of places equal to the precision requested+1
                decimal = v.substr(decp+1,precision+1);
            }else{
                //If the precision is less than 0 ignore the decimals - set to 0
                decimal = '0';
            }
        }
        if ((precision > 0) && (precision >= decimal.length)){
            /*If the precision requested is more decimal places than already exist
            * there is no need to round - return val
            */
            return val;
        }else if ((precision < 0) && (Math.abs(precision) >= integer.length)){
           /*If the precison is less than 0, and is greater than than the
             *number of digits in integer, return 0 - mimics PHP
             */
            return 0;
        }
        val = Number(integer+'.'+decimal); // After sanitizing recreate val
    }

    //Call approriate function based on passed mode, fall through for integer constants
    switch (mode){
        case 0:
        case 'PHP_ROUND_HALF_UP':
            retVal = _round_half(val,precision,'up');
            break;
        case 1:
        case 'PHP_ROUND_HALF_DOWN':
            retVal = _round_half(val, precision,'down');
            break;
        case 2:
        case 'PHP_ROUND_HALF_EVEN':
            retVal = _round_half(val,precision,'even');
            break;
        case 3:
        case 'PHP_ROUND_HALF_ODD':
            retVal = _round_half(val,precision,'odd');
            break;
    }
    if (negative){
        return 0-retVal;
    }else{
        return retVal;
    }
}<commit_msg>Added a testcase to confirm http://phpjs.org/functions/round:505#comment_97461<commit_after>function round (val, precision, mode) {
    // http://kevin.vanzonneveld.net
    // +   original by: <NAME>
    // +    revised by: <NAME>
    // +      input by: Greenseed
    // +    revised by: T.Wild
    // %        note 1: Great work. Ideas for improvement:
    // %        note 1:  - code more compliant with developer guidelines
    // %        note 1:  - for implementing PHP constant arguments look at
    // %        note 1:  the pathinfo() function, it offers the greatest
    // %        note 1:  flexibility & compatibility possible
    // *     example 1: round(1241757, -3);
    // *     returns 1: 1242000
    // *     example 2: round(3.6);
    // *     returns 2: 4
    // *     example 3: round(2.835, 2);
    // *     returns 3: 2.84
    // *     example 4: round(1.1749999999999, 2);
    // *     returns 4: 1.17
    // *     example 5: round(1.17499999999999, 2);
    // *     returns 5: 1.18

    /* Declare Variables
     * retVal  - temporay holder of the value to be returned
     * V       - String representation of val

     * integer - Integer portion of val
     * decimal - decimal portion of val
     * decp    - characterindex of . [decimal point] inV
     * negative- was val a negative value?
     *
     * _round_half_oe - Rounding function for ROUND_HALF_ODD and ROUND_HALF_EVEN

     * _round_half_ud - Rounding function for ROUND_HALF_UP and ROUND_HALF_DOWN
     * _round_half    - Primary function for round half rounding modes
     */
    var retVal=0,v='',integer='',decimal='',decp=0,negative=false;
    var _round_half_oe = function (dtR,dtLa,even){
        if (even === true) {
            if (dtLa == 50) {
                if ((dtR % 2) === 1) {
                    if (dtLa >= 5) {
                        dtR+=1;
                    } else {
                        dtR-=1;
                    }
                }
            }else if (dtLa >= 5) {
                dtR+=1;
            }
        }else{
            if (dtLa == 5) {
                if ((dtR % 2) === 0) {
                    if (dtLa >= 5) {
                        dtR+=1;
                    }else{
                        dtR-=1;
                    }
                }
            }else if (dtLa >= 5) {
                dtR+=1;
            }
        }

        return dtR;
    };
    var _round_half_ud = function (dtR,dtLa,up) {
        if (up === true) {
            if (dtLa>=5) {
                dtR+=1;
            }
        }else{
            if (dtLa>5) {
                dtR+=1;
            }
        }
        return dtR;
    };
    var _round_half = function (val,decplaces,mode){
    /*Declare variables
         *V       - string representation of Val
         *Vlen    - The length of V - used only when rounding intgerers

         *VlenDif - The difference between the lengths of the original V
         *          and the V after being truncated
         *decp    - character in index of . [decimal place] in V
         *integer - Integr protion of Val
         *decimal - Decimal portion of Val
         *DigitToRound - The digit to round

         *DigitToLookAt- The digit to comapre when rounding
         *
         *round - A function to do the rounding
         */
        var v = val.toString(),vlen=0,vlenDif=0;
        var decp = v.indexOf('.');

        var digitToRound = 0,digitToLookAt = 0;
        var integer='',decimal='';
        var round = null,bool=false;
        switch (mode) {
            case 'up':
                bool = true;
                // Fall-through
            case 'down':
                round = _round_half_ud;
                break;
            case 'even':
                bool = true;
            case 'odd':
                round = _round_half_oe;
                break;
        }
        if (decplaces < 0){ //Int round
            vlen=v.length;

            decplaces = vlen + decplaces;
            digitToLookAt = Number(v.charAt(decplaces));
            digitToRound  = Number(v.charAt(decplaces-1));
            digitToRound  = round(digitToRound,digitToLookAt,bool);
            v = v.slice(0,decplaces-1);
            vlenDif = vlen-v.length-1;

            if (digitToRound == 10){
                v = String(Number(v)+1)+"0";
            }else{
                v+=digitToRound;
            }

            v = Number(v)*(Math.pow(10,vlenDif));
        }else if (decplaces > 0){
            integer=v.slice(0,decp);
            decimal=v.slice(decp+1);
            digitToLookAt = Number(decimal.charAt(decplaces));

            digitToRound  = Number(decimal.charAt(decplaces-1));
            digitToRound  = round(digitToRound,digitToLookAt,bool);
            decimal=decimal.slice(0,decplaces-1);
            if (digitToRound==10){
                v=Number(integer+'.'+decimal)+(1*(Math.pow(10,(0-decimal.length))));
            }else{
                v=Number(integer+'.'+decimal+digitToRound);
            }
        }else{
            integer=v.slice(0,decp);
            decimal=v.slice(decp+1);
            digitToLookAt = Number(decimal.charAt(decplaces));

            digitToRound  = Number(integer.charAt(integer.length-1));
            digitToRound  = round(digitToRound,digitToLookAt,bool);
            decimal='0';
            integer = integer.slice(0,integer.length-1);
            if (digitToRound==10){
                v=Number(integer)+1;
            }else{
                v=Number(integer+digitToRound);
            }
        }
        return v;
    };


    //precision optional - defaults 0
    if (typeof precision == 'undefined') {
        precision = 0;
    }
    //mode optional - defaults round half up
    if (typeof mode == 'undefined') {
        mode = 'PHP_ROUND_HALF_UP';
    }

    if (val < 0){ //Remember if val is negative
        negative = true;
    }else{
        negative = false;
    }

    v = Math.abs(val).toString(); //Take a string representation of val
    decp = v.indexOf('.');        //And locate the decimal point
    if ((decp == -1) && (precision >=0)){
   /* If there is no deciaml point and the precision is greater than 0
         * there is no need to round, return val
         */
        return val;
    }else{
        if (decp == -1){
            //There are no decimals so intger=V and decimal=0
            integer = v;
            decimal = '0';
        }else{
            //Otherwise we have to split the decimals from the integer
            integer = v.slice(0,decp);
            if (precision >= 0){
                //If the precision is greater than 0 then split the decimals from the integer
                //We truncate the decimals to a number of places equal to the precision requested+1
                decimal = v.substr(decp+1,precision+1);
            }else{
                //If the precision is less than 0 ignore the decimals - set to 0
                decimal = '0';
            }
        }
        if ((precision > 0) && (precision >= decimal.length)){
            /*If the precision requested is more decimal places than already exist
            * there is no need to round - return val
            */
            return val;
        }else if ((precision < 0) && (Math.abs(precision) >= integer.length)){
           /*If the precison is less than 0, and is greater than than the
             *number of digits in integer, return 0 - mimics PHP
             */
            return 0;
        }
        val = Number(integer+'.'+decimal); // After sanitizing recreate val
    }

    //Call approriate function based on passed mode, fall through for integer constants
    switch (mode){
        case 0:
        case 'PHP_ROUND_HALF_UP':
            retVal = _round_half(val,precision,'up');
            break;
        case 1:
        case 'PHP_ROUND_HALF_DOWN':
            retVal = _round_half(val, precision,'down');
            break;
        case 2:
        case 'PHP_ROUND_HALF_EVEN':
            retVal = _round_half(val,precision,'even');
            break;
        case 3:
        case 'PHP_ROUND_HALF_ODD':
            retVal = _round_half(val,precision,'odd');
            break;
    }
    if (negative){
        return 0-retVal;
    }else{
        return retVal;
    }
}
{'fraction_non_alphanumeric': 0.10990092917358932, 'fraction_numerical': 0.01827579841240539, 'mean_word_length': 1.4417067307692308, 'pattern_counts': {'":': 0, '<': 13, '<?xml version=': 0, '>': 31, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 2, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '3589854', 'n_tokens_mistral': 5014, 'n_tokens_neox': 4653, 'n_words': 1306}