Use replace method with Regex to remove single to double quotes from strings in JavaScript.
someStr.replace(/['"]+/g, '')Remove Single or Double quotes from a string in JavaScript
HTML examples code.
Replace single and double quotes
<!DOCTYPE html>
<html>
<body>
<script>
var dq = 'He said "Hello, my name is Foo"';
console.log(dq.replace(/['"]+/g, ''));
var sq = "He said 'Hello, my name is Foo'";
console.log(sq.replace(/['"]+/g, ''));
</script>
</body>
</html>Output:
['"]is a character class, that matches both single and double-quotes. you can replace this with ” to only match double-quotes.+: one or more quotes, chars, as defined by the preceding char-class (optional)g: the global flag. This tells JS to apply the regex to the entire string. If you omit this, you’ll only replace a single char.
Remove the quotes around a given string
<!DOCTYPE html>
<html>
<body>
<script>
var str = 'remove "foo" delimiting double quotes';
console.log(str.replace(/"([^"]+(?="))"/g, '$1'));
str = 'remove only "foo" delimiting "';
console.log(str.replace(/"([^"]+(?="))"/g, '$1')); //<-- trailing double quote is not removed
</script>
</body>
</html>Output:
": literal, matches any literal: begin capturing group. Whatever is between the parentheses (()) will be captured and can be used in the replacement value.- [^”]+: Character class, matches all chars, except ” 1 or more times
- (?=”): zero-width (as in not captured) positive lookahead assertion. The previous match will only be valid if it’s followed by a ” literal
- ): end capturing group, we’ve captured everything in between the opening-closing
" ": another literal, cf list item one
Remove quotes beginning and end of the string
Double quotes
str.replace(/^"(.+(?="$))"$/, '$1');Double and single quotes
str.replace(/^["'](.+(?=["']$))["']$/, '$1');Complete code
<!DOCTYPE html>
<html>
<body>
<script>
var str = "'remove 'foo' delimiting double quotes'";
console.log("Origianl : " + str);
console.log(str.replace(/^["'](.+(?=["']$))["']$/, '$1'));
str = '"remove only "foo" delimiting "';
console.log("Origianl : " + str);
console.log(str.replace(/^["'](.+(?=["']$))["']$/, '$1'));
</script>
</body>
</html>Output:
^": matches the beginning of the string^and a". If the string does not start with a", the expression already fails here, and nothing is replaced.(.+(?="$)): matches (and captures) everything, including double-quotes one or more times, provided the positive lookahead is true(?="$): the positive lookahead is much the same as above, only it specifies that the"must be the end of the string ($=== end)"$: matches that ending quote, but does not capture it
If you’re not very comfortable using regex just yet, you might want to consider using:
var noQuotes = someStr.split('"').join('');Source: stackoverflow.com
Do comment if you have any doubts or suggestions on this JS string topic.
Note: The All JS Examples codes are tested on the Firefox browser and the Chrome browser.
OS: Windows 10
Code: HTML 5 Version