方法一:
// make it safe to use console.log always
(function (b){
function c(){}
for (var d = "assert,count,debug,dir,dirxml,error,exception,group,groupCollapsed,groupEnd,info,log,timeStamp,profile,profileEnd,time,timeEnd,trace,warn".split(","), a; a = d.pop();) {
b[a] = b[a] || c;
}
})((function (){
try {
console.log();
return window.console;
} catch (err) {
return window.console = {};
}
})());
方法二:
// usage: log('inside coolFunc', this, arguments);
// paulirish.com/2009/log-a-lightweight-wrapper-for-consolelog/
window.log = function() {
log.history = log.history || []; // store logs to an array for reference
log.history.push(arguments);
if (this.console) {
arguments.callee = arguments.callee.caller;
var newarr = [].slice.call(arguments);
(typeof console.log === 'object' ? log.apply.call(console.log, console, newarr) : console.log.apply(console, newarr));
}
};
方法三:
// usage: log('inside coolFunc',this,arguments);
// http://paulirish.com/2009/log-a-lightweight-wrapper-for-consolelog/
window.log = function(){
log.history = log.history || []; // store logs to an array for reference
log.history.push(arguments);
if(this.console){
console.log(Array.prototype.slice.call(arguments));
}
};
方法四:
// http://stackoverflow.com/questions/8785624/how-to-safely-wrap-console-log
window.log = function (){
return window.console && console.log && Function.prototype.apply.apply(console.log, [console, arguments]);
}
方法五:
// http://stackoverflow.com/questions/8785624/how-to-safely-wrap-console-log
window.log = function (){
return window.console && console.log && Function.apply.call(console.log, console, arguments);
}
参考:
介绍博客
console.log-wrapper
How to safely wrap `console.log`?