console.time() in IE8 Developer Tools
Is there an eq开发者_C百科uivalent to
console.time('');
console.timeEnd('');
in IE8 Developer Tools?
There isn't, but you can define it easily with JavaScript:
// console.time implementation for IE
if(window.console && typeof(window.console.time) == "undefined") {
console.time = function(name, reset){
if(!name) { return; }
var time = new Date().getTime();
if(!console.timeCounters) { console.timeCounters = {}; }
var key = "KEY" + name.toString();
if(!reset && console.timeCounters[key]) { return; }
console.timeCounters[key] = time;
};
console.timeEnd = function(name){
var time = new Date().getTime();
if(!console.timeCounters) { return; }
var key = "KEY" + name.toString();
var timeCounter = console.timeCounters[key];
var diff;
if(timeCounter) {
diff = time - timeCounter;
var label = name + ": " + diff + "ms";
console.info(label);
delete console.timeCounters[key];
}
return diff;
};
}
Just place it in your JS file before you want to use console.time() and console.timeEnd().
It is not my code, I actually copied it from Firebug core.
If you want to use Firebug in IE, there is a version called Firebug Lite, which can be used in any browser as a 'Bookmarklet'.
http://getfirebug.com/firebuglite
It isn't as functional as the real thing, but it can do a lot so it may be worth a try.
精彩评论