I'm usingconsole.log(value) however when I use console.log() If I wanted to play around with stuff and make it do other things is there a way I can create a function like...
var console.log = (function() { // something }
5 Answers
You could create a wrapper for the console.log function and then only use your wrapper to write to the console:
function myCustomConsoleLog() {
// do stuff with your arguments
console.log(arguments)
}
Now instead of calling console.log(vars) you would make a call to myCustomConsoleLog(vars).
4 Comments
pourmesomecode
ahh so I can still use
console.log() here and pass through what I want into the console and it'll still act the same and I just add some other logic above that handles what I want?
Lix
Indeed - all the
myCustomConsoleLog is doing in the end is calling the original console.log - but now you can do what ever you want before/after calling it.pourmesomecode
Cheers man! I didn't even think about this approach which is a lot better and easier. Thanks!
Lix
Glad to help! Happy coding.
You don't need to declare console.log again because it's already declared.
In Javascript, console is a global variable. There is nothing preventing you from adding, editing or removing properties from it.
So yes, you can just assign a different function to console.log or whatever else you want:
console.log = function(foo, bar) { ... }
console.anotherProperty = { ... }
If however, you were trying to create a foo.bar variable that does not exist yet, you could do it in many different ways:
// first approach
var foo;
foo.bar = function() { ... };
// second approach
var foo = {
bar: function() { ... };
};
// third approach
var fnBar = function() { ... };
var foo = { bar: fnBar };
See more at Console API docs and Working with objects.
Comments
This is not possible the way you are trying.
What you can do is create an object and add to it some objects:
var obj = {}; // we create an object where we will add the functions
obj.i = 4; // a value
obj.log = function() { }; // a function
Comments
you can do the same, like:
var console = {log:function(){ }};
Comments
I guess you could do something like this:
var console = {}
console.log = "alert me!"
alert(console.log);
Is that what you meant?
window.console = {};Or you could do this just to overwrite the function:console.log = function() { /* something */ }Which is equivalent to this:console["log"] = function() {}