Table of Contents
- 1 What would be the result of 1 2 3 in JavaScript?
- 2 What is the output of console log 1/2 3?
- 3 What is the output of 2 5+ 3 in JavaScript?
- 4 What is the result of 2 2 in JavaScript?
- 5 How do you print something in JavaScript?
- 6 What is the output of 2 5 3 in JavaScript 10 253 73 None of the options are correct?
- 7 Why won’t the console log print the output of a variable?
- 8 Can you put Boolean expressions in console logs?
What would be the result of 1 2 3 in JavaScript?
1+ +”2″+3 results 6 1+”2″+3 results “123” AS The unary + operator converts its operand to Number type. +”2″ is a way to cast the string “2” to the number 2 . The remain is a simple addition.
What is the output of console log 1/2 3?
in 1st case: $ console. log(1 < 2 < 3) first compiler execute 1<2 which returns 1(true), after that it goes like 1<3. which is again 1(true). hence overall it is true.
Does JavaScript use console log?
log() with Examples. The console. log() is a function in JavaScript which is used to print any kind of variables defined before in it or to just print any message that needs to be displayed to the user.
What is the JavaScript syntax for printing values in console?
6. What is the JavaScript syntax for printing values in Console? Explanation: The action which is built into the console object is the . log() method.
What is the output of 2 5+ 3 in JavaScript?
That’s why the answer is 73.
What is the result of 2 2 in JavaScript?
JavaScript performs string concatenation when find + . So the first “2” and second “2” makes “22”. But when performing subtraction ( – ) on strings, coercion happens. So the resulted “22” coerced to number 22 and final “2” coerced to number 2 .
What is === in JavaScript?
=== (Triple equals) is a strict equality comparison operator in JavaScript, which returns false for the values which are not of a similar type. This operator performs type casting for equality. If we compare 2 with “2” using ===, then it will return a false value.
Where does JavaScript console log go?
Introduction to The Console In both client-side JavaScript and Node. js, log data is handled by default via a global console instance. While client-side JavaScript writes console data to the individual browser’s developer console, Node. js console data is written to stdout and stderr.
How do you print something in JavaScript?
JavaScript does not have any print object or print methods. You cannot access output devices from JavaScript. The only exception is that you can call the window.print() method in the browser to print the content of the current window.
What is the output of 2 5 3 in JavaScript 10 253 73 None of the options are correct?
What is the use of console log function in JavaScript?
The console.log() is a function in JavaScript which is used to print any kind of variables defined before in it or to just print any message that needs to be displayed to the user. Syntax: console.log(A); Parameters: It accepts a parameter which can be an array, an object or any message. Return value: It returns the value of the parameter given.
What is the difference between ‘true’ and ‘false’ in logs?
Otherwise, each parameter is output directly. Thus console.log (true + ”, ‘ ‘) outputs ‘true’ because the first parameter is a string and there is no placeholder for the , and console.log (true, ‘ ‘) will output both parameters because true is not a string. Not sure why but false gives back only one space, while true gives back two o_O…
Why won’t the console log print the output of a variable?
Here the variable output is an empty string, so the console log won’t print it, as empty strings are falsy; but as soon as “Fizz” or “Buzz” is added to its value, it becomes truthy and gets printed out instead of n. Note that it wouldn’t work the other way around with: console.log (n || output).
Can you put Boolean expressions in console logs?
I’ve just noticed that you can put boolean expressions within console.log e.g. console.log (“hey” || 2) where in this case hey would be printed out to the console window. I’m not 100\% sure exactly how console.log determines what to print when there is a condition within it.