collecting JavaScript objects directed to console.log

Question

collecting JavaScript objects directed to console.log

I attempted capturing the JavaScript console log using the method mentioned here on Stack Overflow. However, I am facing difficulty in retrieving the object along with a text message. Below is the code snippet that I have been working with:

var obj={result:true,type:"text"};

(function(){
    var oldLog = console.log;
    console.log = function (message) {
        alert(message);  // The object does not get returned
        oldLog.apply(console, arguments);

    };
})();

console.log("hi",obj);

What should I replace message within the alert line of code to successfully receive the obj object as well?

javascript object console.log

Answer 1

Answer №1

You have a custom console.log function where you are passing multiple arguments but only alerting the first argument. To rectify this, iterate through all the arguments passed to your custom console.log function and alert each one:

var obj={result:true,type:"text"};

(function(){
    var oldLog = console.log;
    console.log = function () {
        for (var i = 0; i < arguments.length; i++) {
            alert(arguments[i]);
        }
        oldLog.apply(console, arguments);

    };
})();

console.log("hi",obj);

If you prefer to display all objects in a single alert, you can concatenate their string representations within the for loop and call alert once at the end:

var obj={result:true,type:"text"};

(function(){
    var oldLog = console.log;
    console.log = function () {
      var result = "";  
        for (var i = 0; i < arguments.length; i++) {
            result += arguments[i] + " ";
        }
        alert(result);
        oldLog.apply(console, arguments);

    };
})();

console.log("hi",obj);

Lastly, if you want to view the object contents in your alert, consider using JSON.stringify() on each argument before processing.

Answer 2

You have a custom console.log function where you are passing multiple arguments but only alerting the first argument. To rectify this, iterate through all the arguments passed to your custom console.log function and alert each one:

var obj={result:true,type:"text"};

(function(){
    var oldLog = console.log;
    console.log = function () {
        for (var i = 0; i < arguments.length; i++) {
            alert(arguments[i]);
        }
        oldLog.apply(console, arguments);

    };
})();

console.log("hi",obj);

If you prefer to display all objects in a single alert, you can concatenate their string representations within the for loop and call alert once at the end:

var obj={result:true,type:"text"};

(function(){
    var oldLog = console.log;
    console.log = function () {
      var result = "";  
        for (var i = 0; i < arguments.length; i++) {
            result += arguments[i] + " ";
        }
        alert(result);
        oldLog.apply(console, arguments);

    };
})();

console.log("hi",obj);

Lastly, if you want to view the object contents in your alert, consider using JSON.stringify() on each argument before processing.

Answer 3

Answer №2

Give this a shot

let data={outcome:true,category:"string"};

(function(){
    let oldPrint = console.log;
    console.log = function () {

            alert(JSON.stringify(arguments));

        oldPrint.apply(console, arguments);

    };
})();

Answer 4

Give this a shot

let data={outcome:true,category:"string"};

(function(){
    let oldPrint = console.log;
    console.log = function () {

            alert(JSON.stringify(arguments));

        oldPrint.apply(console, arguments);

    };
})();

collecting JavaScript objects directed to console.log

Answer №1

Answer №2

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