I'm making a simple game in JavaScript but in the story I need it to say the players name. so what I have so far is:
var name = prompt("what is your name?");
console.log("story" name "story);
how do I do the second line? or there is another way I could do this. Is it possible to have 2 console.log(); on 1 line in the console?
Then use + to combine strings:
console.log("story " + name + " story");
You can use another console method:
let name = prompt("what is your name?");
console.log(`story ${name} story`);
` is different than ' in javascriptconsole.log takes multiple arguments, so just use:
console.log("story", name, "story");
If name is an object or an array then using multiple arguments is better than concatenation. If you concatenate an object or array into a string you simply log the type rather than the content of the variable.
But if name is just a primitive type then multiple arguments works the same as concatenation.
console.log('story %s story',name);
%s is the best method for concatenating strings, since you don't need to change the variable type first. I wonder if it's the same in JS?There are several ways of consoling out the variable within a string.
Method 1 :
console.log("story", name, "story");
Benefit : if name is a JSON object, it will not be printed as "story" [object Object] "story"
Method 2 :
console.log("story " + name + " story");
Method 3: When using ES6 as mentioned above
console.log(`story ${name} story`);
Benefit: No need of extra , or +
Method 4:
console.log('story %s story',name);
Benefit: the string becomes more readable.
When using ES6 you can also do this:
var name = prompt("what is your name?");
console.log(`story ${name} story`);
Note: You need to use backticks `` instead of "" or '' to do it like this.
You can pass multiple args to log:
console.log("story", name, "story");
%j works for only Node.js. %j converts a value to a JSON string and inserts it.
console.log('%j new messages for', 7, 'john')
// 7 new messages for john
It depends on what you want.
console.log("story "+name+" story")
will concatenate the strings together and print that. For me, I use this because it is easier to see what is going on.
Using console.log("story",name,"story") is similar to concatenation however, it seems to run something like this:
var text = ["story", name, "story"];
console.log(text.join(" "));
This is pushing all of the items in the array together, separated by a space: .join(" ")
Both console.log("story" + name + "story") and console.log("story", name, "story") works just fine as mentioned in earlier answers.
I will still suggest of having a habit of console.log("story", name, "story"), because, if trying to print the object contents, like json object, having "story" + objectVariable + "story" will convert it into string.
This will have output like : "story" [object Object] "story".
Just a good practice.
You can also use printf style of formatting arguments. It is available in at least Chrome, Firefox/Firebug and node.js.
var name = prompt("what is your name?");
console.log("story %s story", name);
It also supports %d for formatting numbers
You can use the backslash to include both the story and the players name in one line.
var name=prompt("what is your name?"); console.log("story"\name\"story");
