javascript正则表达式来匹配{0}

Question

What will be the regular expression to match {0} in a piece of text? so that if I have

 var temp = 'this is my {0} attempt';

I could use that regular expression in javascript to get the {0} out of 'temp', and replace with whatever text I want.

Thanks

Answer 1

temp = temp.replace("{0}", "your text")

Regex is definitely not needed for this!

Ofcourse, you can do the following as well:

temp = temp.replace(/{\d+}/, "your text")

Response to @Giacomo:

temp = temp.replace("{\d+}", "your text")

will not replace anything. {\\d+} is treated as a string and not regex

Answer 2

If you want to replace with something based on what the number is inside the curly braces, you could do this:

var replaced = original.replace(/\{(\d+)\}/g, function(_, digits) {
  return getReplacement(Number(digits));
});

You'd then write the function "getReplacement()" to return something based on the index from the original string.

Answer 3

/\{\d\}/

\n