1

Suppose I have a variable data:

var data = 6;

If we have data value and it's greater than 5 then the output should be:

"Hello x, 6 is your promo code"

If we don't have a data value, or the value is less than 5 then the output should be:

"Hello x"

How can I do this with a single line of JavaScript?

cjhveal
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Bilash
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6 Answers6

3

Try this:

var numb = 12;
var msg = "Hello x" + (numb > 5 ? (', ' + numb + ' is your promo code') : '');
console.log(msg);
Fadhly Permata
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3
document.write(data > 5? "Hello x, 6 is your promo code" : "Hello x");
halim
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2

You could use a conditional (ternary) operator

condition ? expr1 : expr2

The conditional (ternary) operator is the only JavaScript operator that takes three operands. This operator is frequently used as a shortcut for the if statement.

var data = 6,
    promo = data > 5 ? "Hello x, 6 is your promo code" : 'Hello x';

console.log(promo);
Nina Scholz
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1

try this:

(data>5) ? "Hello x," +6+" is your promo code" : "Hello x
Bartłomiej Gładys
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1

    var x=3;
    alert('Hello' + ((typeof(x) =='undefined' || x<5) ? ' x, ' : ', ' +x + ' is your promo code'));
salih0vicX
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  • var x=32; alert('Hello' + ((typeof(x) =='undefined' || x<5) ? ' x, ' : ', your promo code is '+x)); It also ensures that variable x is declared ... If it is not declared, the result would be 'Hello x, ' – salih0vicX Sep 21 '16 at 07:24
1

I will say, it's a simple ternary operator

var data = 6,
    minVal = 5;

var promo = data > minVal ? "Hello x, " + data + " is your promo code" : 'Hello x';

console.log(promo);
Jose Paredes
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