JS中文转Unicode，Unicode转中文

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JS中文转Unicode，Unicode转中文

一、JS中文转Unicode

    function leftZero(str) {
        if (str != null && str != '' && str != 'undefined') {
            if (str.length == 2) {
                return `00${str}`;
            }
        }
        return str;
    }
    function unicode(str) {
        let value = '';
        for (let i = 0; i < str.length; i++) {
            // eslint-disable-next-line radix
            value += `\\u${leftZero(parseInt(str.charCodeAt(i)).toString(16))}`;
        }
        return value;
    }

二、JS Unicode转中文

	function reconvert(str) {
        str = str.replace(/(\\u)(\w{1,4})/gi, function($0) {
            return (String.fromCharCode(parseInt((escape($0).replace(/(%5Cu)(\w{1,4})/g, '$2')), 16)));
        });
        str = str.replace(/(&#x)(\w{1,4});/gi, function($0) {
            return String.fromCharCode(parseInt(escape($0).replace(/(%26%23x)(\w{1,4})(%3B)/g, '$2'), 16));
        });
        str = str.replace(/(&#)(\d{1,6});/gi, function($0) {
            // eslint-disable-next-line radix
            return String.fromCharCode(parseInt(escape($0).replace(/(%26%23)(\d{1,6})(%3B)/g, '$2')));
        });
        return str;
    }