javascript - Using the ternary operator with string concatenation

Question

alert("test: "+(1==2)?'hello':'world');

This should show me 'world' on the screen since 1 is not equal to 2.

How come it alerts 'hello'?

Answer 1

Try wrapping your parens around the operation

alert("test: "+ (1 == 2 ? 'hello' : 'world'));

demo: http://jsfiddle.net/hunter/K3PKx/

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what this is doing:

alert("test: "+(1==2)?'hello':'world');

is evaluating "test: " + (1==2) as true which outputs 'hello'