For more information about how regex properties (especially the sticky flag) interact with replace(), see RegExp.prototype[@@replace](). You can make a tax-deductible donation here. This regexp will only remove the quotes if they are the first and last characters of the string. (Try them with the challenged case of the above snippet.) Klammern rund um ein Wort oder einen Begriff entfernen bzw. This method does not mutate the string value it's called on. This method does not mutate the string value it's called on. tc39.es/ecma262/#sec-string.prototype.replaceall, developer.mozilla.org/docs/Web/JavaScript/Reference/…, special characters in regular expressions, http://jsperf.com/replace-all-vs-split-join/12, replit.com/@RixTheTyrunt/rixxyplayer-parser?v=1, 22.1.3.19 String.prototype.replaceAll ( searchValue, replaceValue), What developers with ADHD want you to know, MosaicML: Deep learning models for sale, all shapes and sizes (Ep. This means it will be available for all string objects/literals. In the example above, there are two instances of dogs, but the first one has a capital D. As you can see by the output, the substitution was case-sensitive: As you saw earlier, you can pass a regular expression (also known as regex) as the first parameter. Note: See the regular expression guide for more explanations about regular expressions. Reguläre Ausdrücke stehen nicht in Hochkommas, sondern in Schrägstrichen: /Nähkurs/ und sie können durch die Modifier g und i erweitert werden. For Node.js and compatibility with older/non-current browsers: Note: Don't use the following solution in performance critical code. How to take the string value out of its scope(unstring)? Otherwise you want to remove only quotes around the string, use: This simple code will also work, to remove for example double quote from a string surrounded with double quote: this code is very better for show number in textbox, If you want to be old school, go with REGEX 1,$s/"//g. Escape Character Because strings must be written within quotes, JavaScript will misunderstand this string: let text = "We are the so-called "Vikings" from the north."; The string will be chopped to "We are the so-called ". Not the answer you're looking for? The replacement has the same semantics as that of String.prototype.replace(). The following example will set newString to 'abc - 12345 - #$*%': The function will be invoked multiple times for each full match to be replaced if the regular expression in the first parameter is global. Find centralized, trusted content and collaborate around the technologies you use most. freeCodeCamp's open source curriculum has helped more than 40,000 people get jobs as developers. Ah gut, aber wenn es das ist, was Sie wollen/brauchen, bitte lesen Sie weiter: In diesem letzten Fall ist es jedoch viel sicherer, schneller, wartungsfreundlicher und einfach besser, dies zu tun: Hier überprüfe ich, ob das erste und letzte Zeichen in der Zeichenfolge doppelte Anführungszeichen sind. Loop it until number occurrences comes to 0, like this: This is the fastest version that doesn't use regular expressions. Alternativ kann die Methode auch das erste Vorkommen einer zu definierenden Zeichenkette ersetzen. 577), We are graduating the updated button styling for vote arrows, Statement from SO: June 5, 2023 Moderator Action, I want to remove the '' around a String need to get CKEDITOR value CKEDITOR.instances.editor_1003.getData() and id name equal to editor_1003, Unable to push modified string to a javascript array, How to remove quotes from around a string in Golang. EX: replaceAll_0("foo bar foo") => "bar foo" when it should just be "bar". Since we don't want the last char, anymore than we want the first, that length is str.length - 2. * anstatt .+. Wenn Sie die Kontrolle über Ihre Daten haben und wissen, dass Ihre doppelten Anführungszeichen die Zeichenfolge umgeben (also nicht innerhalb der Zeichenfolge erscheinen) und die Zeichenfolge eine Ganzzahl ist … sagen Sie mit: oder ähnliches entfernt dies schön die umgebenden Anführungszeichen, Keine universelle Antwort, aber glatt für Nischenbedürfnisse. So new RegExp("abc", 'g') creates a regular expression what matches all occurrences ('g' flag) of the text ("abc"). How to understand zero elements in CG coefficient table? Replace " ' " with " '' " in JavaScript. A new string, with one, some, or all matches of the pattern replaced by the specified replacement. Syntax: str.replace (value1, value2) Home - JavaScript-Tutorials - Ich möchte doppelte Anführungszeichen aus einem String entfernen. In this case we need polyfill (forcing older browsers to support new features) (I think for a few years will be necessary). It's now supported in Chrome 85+, Edge 85+, Firefox 77+, Safari 13.1+. Courses. Thrown if the pattern is a regex that does not have the global (g) flag set (its flags property does not contain "g"). What is the proper way to prepare a cup of English tea? We can use rest parameters, but it would also collect offset, string, etc. geklammerte Teilstrings, wenn das erste Argument ein regulärer Ausdruck ist. how to remove double quotes and escape it in specific parts of a string, Javascript : Replace Backslash and double Quotes with some other char. The replace () method searches a string for a value or a regular expression. Apart from the String.prototype.replace() method, I also showed you how to use the String.prototype.replaceAll() method – a hybrid of String.prototype.replace() method. If you only want to remove the boundary quotes: This approach won't touch the string if it doesn't look like "text in quotes". The following script switches the words in the string. The function has the following signature: The arguments to the function are as follows: The matched substring. Here is an example of .replace used with a callback function. Möchten Sie ALLE Anführungszeichen oder die Grenzanführungszeichen entfernen? April 2019 um 16:31 Uhr Aaron Sie müssen die Zeichenfolge, in die Sie schreiben, mit Escapezeichen versehen DoEdit um die doppelten Anführungszeichen zu entfernen. That said, using replaceAll () is the most straightforward and fastest way to do so. Inserts the portion of the string that follows the matched substring. if the String is: "I am here" then I want to output only I am here. freeCodeCamp's open source curriculum has helped more than 40,000 people get jobs as developers. This is the original string I am working with and I want to modify some of its contents. Bounds of heights of coefficients of rational polynomials. As noted in the comment below by @ThomasLeduc and others, there could be an issue with the regular expression-based implementation if search contains certain characters which are reserved as special characters in regular expressions.The implementation assumes that the caller will escape the string beforehand or will only pass strings that are without the characters in the table in Regular . This seems to only remove the first occurrence of abc in the string above: As of August 2020: Modern browsers have support for the String.replaceAll() method defined by the ECMAScript 2021 language specification. The function sets the Celsius number based on the number of Fahrenheit degrees passed in a string to the f2c() function. (Corresponds to $& above.). The replace () method returns a new string with the value (s) replaced. Making statements based on opinion; back them up with references or personal experience. Please try following regex for remove double quotes from string . It is almost twice as fast as the split and join method. We also have thousands of freeCodeCamp study groups around the world. Warning! Can be a string or an object with a Symbol.replace method â the typical example being a regular expression. Content available under a Creative Commons license. replace all instances, use a regular expression with the g modifier set. The String.prototype.replace() method searches for the first occurrence of a string and replaces it with the specified string. Unlike replace(), this method would replace all occurrences of a string, not just the first one. Zuerst entfernt man nur das erste äußere Anführungszeichen. Das Muster passt sowohl zu den Anführungszeichen als auch zu dem, was dazwischen steht, ersetzt es aber nur durch das, was sich zwischen den Anführungszeichen befindet, wodurch sie effektiv entfernt werden. What were the Minbari plans if they hadn't surrendered at the battle of the line? To make it case-insensitive, make sure to add the i flag after the g flag like so: The regular expression /dogs/gi will match all instances that contain that substring and make the replacement case insensitive. Our mission: to help people learn to code for free. I've tried just doing, You don't escape quotes in regular expressions. in a variable named my_string. The following example replaces a Fahrenheit degree with its equivalent Celsius degree. All instances of the specified pattern will be replaced by replacement. Die Backreference in regulären Ausdrücken ist eine besondere Variable, die automatisch zum Speicher eines Ausdrucks in runden Klammern wird. If you replace a value, only the first instance will be replaced. str = str.replace(/^"|"$/g, ''); ersetzt Begrenzungszitate. But as here @sebastian-simon explained about, that can make secondary problems in case of more advanced uses. One of the ways is using the built-in replaceAll() method, which you will learn to use in this article. Beide Argumente sind Strings; es wird nur das erste Vorkommen ersetzt. More on lookaround assertions can be found here If the number is "0F", the function returns "-17.77777777777778C". If the quotes are always going to be at the begining and end of the string, then you could use this: With input remove "foo" delimiting ", the output will remain unchanged, but change the input string to "remove "foo" delimiting quotes", and you'll end up with remove "foo" delimiting quotes as output. This'll prove useful in perfecting this expression to meet your specific needs. It looks like currently it is the shortest one which does the question job: The tests were performed on Chrome 79.0, Safari 13.0.4 and Firefox 71.0 (64 bit). In the latest versions of most popular browsers, you can use replaceAll Mit dem JavaScript-Escape-Zeichen \, ist im HTML-Kontext nicht ausreichend. This method work well for just simple cases, but NEVER can be a main option. Why did my papers got repeatedly put on the last day and the last session of a conference? If you find this article helpful, don’t hesitate to share it with your friends and family. But again, if you heavily use this, you can write something like this: And simply use it in your code over and over like below: But as I mention earlier, it won't make a huge difference in terms of lines to be written or performance. As pointed out in a comment here, this will not work if your omit variable contains place, as in: replaceAll("string", "s", "ss"), because it will always be able to replace another occurrence of the word. with cats. replacement Can be a string or a function. Wenn Sie versuchen, die Anführungszeichen um eine bestimmte Zeichenfolge (dh paarweise) zu entfernen, wird die Sache etwas kniffliger. If the pattern is a string, or if the corresponding capturing group isn't present in the regex, then the pattern will be replaced as a literal. Can I drink black tea that’s 13 years past its best by date? Suppose we want to create a replacer that appends the offset data to every matched string. By clicking “Post Your Answer”, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct. You can make a tax-deductible donation here. The regular expression test checks for any number that ends with F. The number of Fahrenheit degrees is accessible to the function through its second parameter, p1. Thanks for contributing an answer to Stack Overflow! Perhaps (at risk of being voted down) that can be combined for a slightly more efficient but less readable form: This can be particularly useful when looking for duplicate strings. Eine einfachere Regex, die so ziemlich dasselbe tut (es gibt interne Unterschiede, wie die Regex kompiliert/angewendet wird), wäre: Wie vorher ^" und "$ Übereinstimmung mit den begrenzenden Anführungszeichen am Anfang und am Ende einer Zeichenfolge, und die (.+) passt alles dazwischen an und fängt es ein. Any value that doesn't have the Symbol.replace method will be coerced to a string. Although the replaceAll() method is compatible with all the major browsers, it is not the best solution when developing for older versions of browsers, as these older versions may not be able to understand and support it. Not the answer you're looking for? It's a free, well-thought-out, and structured curriculum where you will learn interactively. By clicking “Accept all cookies”, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. As noted in the comment below by @ThomasLeduc and others, there could be an issue with the regular expression-based implementation if search contains certain characters which are reserved as special characters in regular expressions. This is because '$&'.toLowerCase() would first be evaluated as a string literal (resulting in the same '$&') before using the characters as a pattern. If we had tried to do this using the match without a function, the toLowerCase() would have no effect. Inserts the portion of the string that precedes the matched substring. If you're looking for the method in Node.js, this will not work. Standardmäßig wird nur die erste gefundene Zeichenfolge ersetzt. Today 27.12.2019 I perform tests on macOS v10.13.6 (High Sierra) for the chosen solutions. I then call the replaceAll() method on the original string, pass the two substrings as parameters, and store that result in a variable named my_new_string. Did any computer systems connect "terminals" using "broadcast"-style RF to multiplex video, and some other means of multiplexing keyboards? // Die »Anführungszeichen« ersetzen. Nähkurse finden immer Donnerstags, Wordpress-Kurse immer Montags statt. The pattern matches both the quotes and what's inbetween them, but replaces it only with what's in between the quotes, thus effectively removing them. Wobei n eine Zahl ist: falls das erste Argument ein regulärer Ausdruck war, werden so die geklammerten Teilstrings eingesetzt. This method takes two or more arguments of strings and returns a concatenation of the given strings. Warum führt die Subtraktion dieser beiden Epochenmillionen (im Jahr 1927) zu einem seltsamen Ergebnis? It returns a new string. All browser compatibility updates at a glance, Frequently asked questions about MDN Plus. However, this replacer would be hard to generalize if we want it to work with any regex pattern. String replace does not work in javascript (with double quotes). In this case, it dramatically simplifies the expression and provides even more flexibility, like replacing with correct capitalisation or replacing both cat and cats in one go: Match against a global regular expression: Or try the replaceAll method, as recommended in this answer: EDIT: Clarification about replaceAll availability. Enable JavaScript to view data. The result is the same as the native replaceAll in case of the first argument input is: JavaScript Algorithms and Data Structures Certification. Contradictory references from my two PhD supervisors. I've tried this regex, along side the one above (with lookahead assertion) and, admittedly, to my surprize found this one to be slightly slower. The function's result (return value) will be used as the replacement string. Site design / logo © 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. The second part is what gets replaced to, in your case empty string (""). If the replacement string contains the search keyword, then an infinite loop will occur. Oktober 13 um 9:59 Uhr Die Option von @ Mr_Green funktioniert. For example, if the pattern is /(\a+)(\b+)/, then p1 is the match for \a+, and p2 is the match for \b+. 3. // Die »Anführungszeichen« ersetzen. "A hacker called ha. If what you want to find is already in a string, and you don't have a regex escaper handy, you can use join/split: I like this method (it looks a little cleaner): String.prototype.replaceAll - ECMAScript 2021. How to create a string "replace all" function? Content available under a Creative Commons license. If you're not very comfortable using regex's just yet, you might want to consider using: If there's a lot of quotes in the string, this might even be faster than using regex. // "$2oo"; the regex doesn't have the second group, // "$1oo"; the pattern is a string, so it doesn't have any groups, // "oo"; the second group exists but isn't matched, // p1 is non-digits, p2 digits, and p3 non-alphanumerics, "Apples are round, and apples are juicy.". Fragen, Meinungen, Anregungen? The exact number of arguments depends on whether the first argument is a RegExp object â and, if so, how many capture groups it has. jsdoc/newline-after-description, So beheben Sie den Fehler 500 in admin-ajax.php WordPress, Die Sortierung nach „post__in“ führt nicht zur korrekten Reihenfolge. By clicking “Accept all cookies”, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. The replacement string can include the following special replacement patterns: $n and $
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