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In JavaScript, is there any circumstance where there is a semantic difference between these two options?
foo.bar + '' ...and...
'' + foo.bar I would've expected the latter to more reliably coerce the result to a string, but I can't find any discussion of this (after much Googling) nor any example where it seems to matter.
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You concatenate strings by using the + operator. For string literals and string constants, concatenation occurs at compile time; no run-time concatenation occurs. For string variables, concatenation occurs only at run time.
Concatenate string literals in C/C++ A string literal is a sequence of characters, enclosed in double quotation marks (" ") , which is used to represent a null-terminated string in C/C++. If we try to concatenate two string literals using the + operator, it will fail.
String concatenation It can be a bit surprising, but this code actually runs in O(N2) time. The reason is that in Java strings are immutable, and as a result, each time you append to the string new string object is created.
Both are the same.
There is only a difference if there are other + (on the left or the right). In other words:
1 + 1 + '' // results in '2' Is not the same as:
'' + 1 + 1 // results in '11' If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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