The basic method is used console.log(object) to console log objects in JavaScript. The Console method log() outputs a message to the web console.
console.log(obj)
Note: you must only log the object. For example, this won’t work:
console.log('My object : ' + obj)
Note: You can also use a comma in the log
method, then the first line of the output will be the string and after that, the object will be rendered:
console.log('My object: ', obj);
Source: stackoverflow.com/
Console log object in JavaScript
Simple example code using console log.
<!DOCTYPE html>
<html>
<body>
<script>
var obj = {
prop1: 'prop1Value',
prop2: 'prop2Value',
child: {
childProp1: 'childProp1Value',
},
}
console.log(obj)
</script>
</body>
</html>
Output:
Other Methods
Use native JSON.stringify
method. Works with nested objects and all major browsers support this method. JSON.stringify(object)
only works with JSON-compatible data, which means certain value types can be lost.
str = JSON.stringify(obj);
str = JSON.stringify(obj, null, 4); // (Optional) beautiful indented output.
console.log(str); // Logs output to dev tools console.
Use console.dir(object)
to display an interactive list of the properties of the specified JavaScript object.
var obj = {
prop1: 'prop1Value',
prop2: 'prop2Value',
child: {
childProp1: 'childProp1Value',
},
}
console.dir(obj)
Use console.table(object)
, This function takes one mandatory argument data
, which must be an array or an object, and one additional optional parameter columns
.
console.table(obj)
Do comment if you have any doubts or suggestions on this JS Console log topic.
Note: The All JS Examples codes are tested on the Firefox browser and the Chrome browser.
OS: Windows 10
Code: HTML 5 Version