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Sufiyaan Haroon
Full Stack JavaScript Techdegree Student 9,558 PointsWhat is the difference between: alert("My message"); and: message = "My message":
What is the difference between:
alert("My message");
and:
message = "My message";
It gives you the same result
2 Answers
john larson
16,594 PointsHi Sufyaan. It probably seems like they are the same but they are not. alert(message) will print the message to an alert box when called. message = "my_message" is is saving "my_message" in the variable message for later use. At this point it may not be apparent, but saving information in variables is a huge part of programming. That is probably what you are supposed to get out of that bit of lesson. Have fun :D
anish talwar
1,362 Pointsalert("My message"); will print "My message" and message = "My message"; // where message is a variable so you are storing the string to that variable.
to pass this we can do alert(message); //this will help you to print "My message" in your alert box in the browser
hope this clears the doubt :D anything else would happy to answer
string
3,558 Pointsstring
3,558 PointsThis one uses a variable. You are alerting the VALUE of the variable:
message = "My message"; alert(message);
message = "My NEW message"; alert(message);
Unlike alert("My message"); -- this one simply alerts the string "My message".
Using variables is a good way to organize your code and stash useful information in memory that you might need to use more than once.
Say you have 20 alerts with the same exact message throughout your entire program and you decide to change that message. You'd have to find and edit ALL those alerts in order to make those modifications.
Now if you have this message stored in a variable, you only need to change the VALUE of that variable.