disable wechat-dev-tools from twittering

disable_wechat_twitter

 var _console = {
     _disabledGroupFlags: [],
     log: window.console.log.bind(window.console),
     info: window.console.info.bind(window.console),
     debug: window.console.debug.bind(window.console),
     group: window.console.group.bind(window.console),
     groupEnd: window.console.groupEnd.bind(window.console)
 };
window.console.info = function() {
    // 开发者工具中不显示vConsole的debug print
    if (_console._disabledGroupFlags.length || (/wechatdevtools/.test(navigator.userAgent) && /\[system]/.test(arguments[0]))) {
        return false;
    }
    _console.info.apply(window.console, arguments);
};
window.console.debug = function() {
    // 当console.group被屏蔽时, 也屏蔽debug
    if (!_console._disabledGroupFlags[_console._disabledGroupFlags.length - 1]) {
        _console.debug.apply(window.console, arguments);
    }
};
window.console.group = function(descriptor) {
    // 如果匹配如下正则，则忽略此次的console.group
    if (!/wx\..+(begin|end)$/.test(descriptor)) {
        _console._disabledGroupFlags.push(false);
        return _console.group(descriptor);
    }
    _console._disabledGroupFlags.push(true);
};
window.console.groupEnd = function() {
    // 如果此次console.group没有被屏蔽，才执行对应的console.groupEnd
    if (!_console._disabledGroupFlags.pop()) {
        _console.groupEnd();
    }
};