Remove parentheses, brackets, and quotes from a string
Remove parentheses:
For example: If your result is like: "{result}"
The below expression will remove the parentheses and give you an answer as "result"
var value = value.replace(/[\])}[{(]/g, '');
Remove Brackets:
Brackets can be removed from a string in Javascript by using a regular expression in combination with the
.replace() method.
var value = value.replace(/[\[\]']+/g, '')
Lets
elaborate:
·
The
first parameter of.replace() is regular expression /[\])}[{(]/g.
o Regular
expressions are essentially rules used to define a set of characters to
match and to subsequently invoke the replace method on.
·
To
remove [.
and ] individually,
we need to escape them using \.
·
+ applies
the rule to the whole string.
Remove double quotes:
The below regex for replacing all double-quotes in javascript.
"/g" is for replacing all double quotes in a string.
var value = "result";
value = value.replace(/\"/g, "");
Some More Examples with explanations:
First Regex
x =
x.replace(/[{()}]/g, '');
y = y.replace(/[{()}]/g, '');
In first regex /[{()}]/g the outer square
brackets [] makes a character class, it will match one of the character specified
inside of it. In this case the characters {( )}.
Outside of the /regexp/ you have
the g (global) modifier meaning that you are entire regular the expression will match as many times as it can, and it will not just make to the
first match.
Second regex
x =
x.replace(/[\[\]']+/g, '');
y = y.replace(/[\[\]']+/g, '');
In second regex / [\[\]']+/g the outer square
brackets [] makes a character class, it will match one of the character specified
inside of it. In this case the characters [ ] '.
Note that the square brackets appear scaped inside the [character class] as \ [\].
After it you have specified a + quantifier,
it makes the preceding rule match one or more times in a row.
Note that this is redundant, even if it works, this is not quite what you want.
Outside of the /regularexpression/ you have the g (global) modifier meaning that your entire regular
expression will match as many times as it can, and it will not just make it to
the first match.
