IE8下 浏览器不打开控制台使用console.log 是报错的 。
解决方法
<script type="text/javascript">
//解决 IE8、IE9 不支持 console 问题
window.console = window.console || (function () {
var c = {}; c.log = c.warn = c.debug = c.info = c.error = c.time = c.dir = c.profile
= c.clear = c.exception = c.trace = c.assert = function () { };
return c;
})();
</script>
这样可以使console不报错。但是会影响功能，可以使用下面方法
window._console =window.console;//将原始console对象缓存
window.console = (function(orgConsole){
return{//构造的新console对象
log: getConsoleFn("log"),
debug: getConsoleFn("debug"),
info: getConsoleFn("info"),
warn: getConsoleFn("warn"),
exception: getConsoleFn("exception"),
assert: getConsoleFn("assert"),
dir: getConsoleFn("dir"),
dirxml: getConsoleFn("dirxml"),
trace: getConsoleFn("trace"),
group: getConsoleFn("group"),
groupCollapsed: getConsoleFn("groupCollapsed"),
groupEnd: getConsoleFn("groupEnd"),
profile: getConsoleFn("profile"),
profileEnd: getConsoleFn("profileEnd"),
count: getConsoleFn("count"),
clear: getConsoleFn("clear"),
time: getConsoleFn("time"),
timeEnd: getConsoleFn("timeEnd"),
timeStamp: getConsoleFn("timeStamp"),
table: getConsoleFn("table"),
error: getConsoleFn("error"),
memory: getConsoleFn("memory"),
markTimeline: getConsoleFn("markTimeline"),
timeline: getConsoleFn("timeline"),
timelineEnd: getConsoleFn("timelineEnd")
};
functiongetConsoleFn(name){
returnfunctionactionConsole(){
if(typeof(orgConsole) !=="object")return;
if(typeof(orgConsole[name]) !=="function")return;//判断原始console对象中是否含有此方法，若没有则直接返回
returnorgConsole[name].apply(orgConsole,Array.prototype.slice.call(arguments));//调用原始函数
};
}
}(window._console));
参考https://blog.csdn.net/qq_34986769/article/details/52161785
https://www.cnblogs.com/wz122889488/p/6272751.html
