js实现去重复方法
js去重复代码，js实现去重复方法教程如下：
将有重复字符的文字放入框中
结果：自动删除重复的字符
js实现代码：
function jsonzip(ii) {
var txtA = document.getElementById("json_input");
var text = txtA.value;
if ((ii == 1 || ii == 3)) {
text = text.split("\n").join(" ");
var t = [];
var inString = false;
for (var i = 0, len = text.length; i < len; i++) {
var c = text.charAt(i);
if (inString && c === inString) {
if (text.charAt(i - 1) !== '\\') {
inString = false;
}
} else if (!inString && (c === '"' || c === "'")) {
inString = c;
} else if (!inString && (c === ' ' || c === "\t")) {
c = '';
}
t.push(c);
}
text = t.join('');
}
if ((ii == 2 || ii == 3)) {
text = text.replace(/\\/g, "\\\\").replace(/\"/g, "\\\"");
}
if (ii == 4) {
text = text.replace(/\\\\/g, "\\").replace(/\\\"/g, '\"');
}
txtA.value = text;
}
String.prototype.trim = function () {
return this.replace(/(^\s*)|(\s*$)/g, '');
}
var GB2312UnicodeConverter = {
ToUnicode: function (str) {
var txt = escape(str).toLocaleLowerCase().replace(/%u/gi, '\\u');
return txt.replace(/%7b/gi, '{').replace(/%7d/gi, '}').replace(/%3a/gi, ':').replace(/%2c/gi, ',').replace(/%27/gi, '\'').replace(/%22/gi, '"').replace(/%5b/gi, '[').replace(/%5d/gi, ']');
}
, ToGB2312: function (str) {
return unescape(str.replace(/\\u/gi, '%u'));
}
};
function u2h() {
var txtA = document.getElementById("json_input");
var text = txtA.value;
text = text.trim();
txtA.value = GB2312UnicodeConverter.ToGB2312(text);
}
function h2u() {
var txtA = document.getElementById("json_input");
var text = txtA.value;
text = text.trim();
txtA.value = GB2312UnicodeConverter.ToUnicode(text);
}
显示效果：在线去重复工具
参考文章：http://tishang.net/articles/1685445105.html
