how string() works here? addition of strings and numbers in string();

Asked Jan 21 '22 at 03:00

Active Jan 21 '22 at 03:13

Viewed 15 times

String("12"+3) // output : 123

String(+"12"+3) // output : 15

edited Jan 21 '22 at 03:12

asked Jan 21 '22 at 03:00

Aldrin Bright

has nothing to do with String() – epascarello Jan 21 '22 at 03:11
https://stackoverflow.com/questions/6682997/what-is-the-purpose-of-a-plus-symbol-before-a-variable – epascarello Jan 21 '22 at 03:12
1

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Unary_plus – epascarello Jan 21 '22 at 03:14
`+'12'` is shorthand for `Number('12')`. [Spec here](https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-unary-plus-operator). – tao Jan 21 '22 at 03:22

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