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js工具库 封装常用的工具函数 如深拷贝 时间转换日期格式化、浏览器判断等，提高开发效率
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<h1 class="page-title">Source: transfer/jsonString.js</h1>
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<pre class="prettyprint source linenums"><code>/*
* @Author: zhangyu
* @Email: zhangdulin@outlook.com
* @Date: 2021-06-23 20:22:57
* @LastEditors: zhangyu
* @LastEditTime: 2021-06-25 17:14:39
* @Description:
*/
import {
getType
} from '../judgement/index'
/**
* 解码url参数值 eg:%E6%B5%8B%E8%AF%95 => 测试
* @param {string} param 要解码的字符串 eg:%E6%B5%8B%E8%AF%95
*/
export function decode_url_param(param) {
try {
return decodeURIComponent(param);
} catch (e) {
return param;
}
}
//----------------------- JSON.js -----------------------
var has = Object.prototype.hasOwnProperty,
JSON_SPECIAL = {
'\b': '\\b',
'\t': '\\t',
'\n': '\\n',
'\f': '\\f',
'\r': '\\r',
'"': '\\"',
'\\': '\\\\'
},
JSON_NULL = "null";
//字符转义
function json_replace(c) {
//return JSON_SPECIAL[c]||'\\u' + ('0000' + c.charCodeAt(0).toString(16)).slice(-4);
return JSON_SPECIAL[c] || c;
}
//json转化
function json_encode(obj) {
switch (getType(obj)) {
case "string":
return '"' + obj.replace(/[\x00-\x1f\\"]/g, json_replace) + '"';
case "list":
case "array":
var tmp = [];
for (var i = 0, len = obj.length; i < len; i++) {
if (typeof obj[i] !== "function") tmp.push(obj[i] != undefined ? json_encode(obj[i]) : JSON_NULL);
}
return "[" + tmp + "]";
case "object":
case "arguments":
var tmp = [];
for (var k in obj) {
if (has.call(obj, k) && typeof obj[k] !== "function") tmp.push("\"" + k + "\":" + json_encode(obj[k]));
}
return "{" + tmp.toString() + "}";
case "boolean":
return obj + "";
case "number":
return isFinite(obj) ? obj + "" : JSON_NULL;
case "date":
return isFinite(obj.valueOf()) ? "\"" + obj.toUTC().format("yyyy-MM-ddTHH:mm:ss.SZ") + "\"" : JSON_NULL;
case "function":
return;
default:
return typeof obj == "object" ? "{}" : JSON_NULL;
}
}
//json解析
//secure:是否进行安全检测
function json_decode(text, secure) {
//安全检测
if (secure !== false && !/^[\],:{}\s]*$/.test(text.replace(/\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g, "@").replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, "]").replace(/(?:^|:|,)(?:\s*\[)+/g, ""))) throw new Error("JSON SyntaxError");
try {
return (new Function("return " + text))();
} catch (e) { }
}
if (!window.JSON) {
window.JSON = {
stringify: json_encode,
parse: json_decode
};
}
JSON.encode = json_encode;
JSON.decode = json_decode;
export default {
decode_url_param,
json_replace,
json_encode,
json_decode
}</code></pre>
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