1

.replace(/~/g, '%7E');

1
2
3

function fixedEncodeURI () {
    return encodeURI(str).replace(/%5B/g, '[').replace(/%5D/g, ']');
}

1
2
3
4
56
7
8
9
1011
12
13
14
1516
17
18
19
2021
22
23
24
2526
27
28
29
3031
32
33
34
3536
37
38
39
4041
42
43
44
4546
47
48
49
5051
52
53
54
5556
57
58
59
6061
62
63

function urlencode (str) {
    // http://kevin.vanzonneveld.net
    // +   original by: Philip Peterson
    // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +      input by: AJ    // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +   improved by: Brett Zamir (http://brett-zamir.me)
    // +   bugfixed by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +      input by: travc
    // +      input by: Brett Zamir (http://brett-zamir.me)    // +   bugfixed by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +   improved by: Lars Fischer
    // +      input by: Ratheous
    // +      reimplemented by: Brett Zamir (http://brett-zamir.me)
    // +   bugfixed by: Joris    // %          note 1: This reflects PHP 5.3/6.0+ behavior
    // *     example 1: urlencode('Kevin van Zonneveld!');
    // *     returns 1: 'Kevin+van+Zonneveld%21'
    // *     example 2: urlencode('http://kevin.vanzonneveld.net/');
    // *     returns 2: 'http%3A%2F%2Fkevin.vanzonneveld.net%2F'    // *     example 3: urlencode('http://www.google.nl/search?q=php.js&ie=utf-8&oe=utf-8&aq=t&rls=com.ubuntu:en-US:unofficial&client=firefox-a');
    // *     returns 3: 'http%3A%2F%2Fwww.google.nl%2Fsearch%3Fq%3Dphp.js%26ie%3Dutf-8%26oe%3Dutf-8%26aq%3Dt%26rls%3Dcom.ubuntu%3Aen-US%3Aunofficial%26client%3Dfirefox-a'
 
    var hexStr = function (dec) {
        return '%' + (dec < 16 ? '0' : '') + dec.toString(16).toUpperCase();    };
 
    var ret = '',
            unreserved = /[\w.-]/; // A-Za-z0-9_.- // Tilde is not here for historical reasons; to preserve it, use rawurlencode instead
    str = (str+'').toString(); 
    for (var i = 0, dl = str.length; i < dl; i++) {
        var ch = str.charAt(i);
        if (unreserved.test(ch)) {
            ret += ch;        }
        else {
            var code = str.charCodeAt(i);
            if (0xD800 <= code && code <= 0xDBFF) { // High surrogate (could change last hex to 0xDB7F to treat high private surrogates as single characters); https://developer.mozilla.org/index.php?title=en/Core_JavaScript_1.5_Reference/Global_Objects/String/charCodeAt
                ret += ((code - 0xD800) * 0x400) + (str.charCodeAt(i+1) - 0xDC00) + 0x10000;                i++; // skip the next one as we just retrieved it as a low surrogate
            }
            // We never come across a low surrogate because we skip them, unless invalid
            // Reserved assumed to be in UTF-8, as in PHP
            else if (code === 32) {                ret += '+'; // %20 in rawurlencode
            }
            else if (code < 128) { // 1 byte
                ret += hexStr(code);
            }            else if (code >= 128 && code < 2048) { // 2 bytes
                ret += hexStr((code >> 6) | 0xC0);
                ret += hexStr((code & 0x3F) | 0x80);
            }
            else if (code >= 2048) { // 3 bytes (code < 65536)                ret += hexStr((code >> 12) | 0xE0);
                ret += hexStr(((code >> 6) & 0x3F) | 0x80);
                ret += hexStr((code & 0x3F) | 0x80);
            }
        }    }
    return ret;
}

1

%C2%A3

1

%A3

1

histogram['%C2%A3'] = '%A3';

1
2
3
4
56
7
8
9
1011

function urlencode (str) {
        var res="";
        for (i=0;i<str.length;i++) {
                if(str[i]==' ') {
                        res+='+';                }else {
                        res+=escape(str[i]);
                }
        }
        return res;}

1

ret = ret.replace(/\//g,'%2F');

1
2
3

function urlencode (str) {
    return encodeURIComponent(str);
}