https://stackoverflow.com › questions › 9133102
How to grab substring before a specified character in JavaScript?If you want to return the original string untouched if it does not contain the search character then you can use an anonymous function (a closure): var streetaddress=(function(s){var i=s.indexOf(','); return i==-1 ? s : s.substr(0,i);})(addy); This can be made more generic:
https://stackoverflow.com › questions › 16470113
javascript - How to return part of string before a certain character ...The substring() method returns the part of the string between the start and end indexes, or to the end of the string. // substring(indexStart, indexEnd); // syntax // in your case str = str.substring(0, str.indexOf(":"));
https://bobbyhadz.com › blog › javascript-get-substring-before-specific-character
Get the Substring before a specific Character in JavaScriptUse the substring() method to get the substring before a specific character. The substring method will return a new string containing the part of the string before the specified character. index.js. const str = 'one two_three four'; const before_ = str.substring(0, str.indexOf('_')); console.log(before_);
substring extrait des caractères de la chaîne courante à partir de indiceA jusqu'à indiceB (non compris). On a notamment : Si indiceA est égal à indiceB, substring retournera une chaîne vide. Si indiceB est omis, substring effectuera l'extraction des caractères jusqu'à la fin de la chaîne.
https://www.w3schools.com › jsref › jsref_substring.asp
JavaScript String substring() Method - W3SchoolsThe substring() method extracts characters from start to end (exclusive). The substring() method does not change the original string. If start is greater than end, arguments are swapped: (4, 1) = (1, 4).
La méthode substr() retourne la partie d'une chaîne de caractères comprise entre l'indice de départ et un certain nombre de caractères après celui-ci. Exemple interactif. Syntaxe. js. chn.substr(début[, longueur]) Paramètres. début. L'indice du premier caractère à inclure dans la sous-chaîne retournée. longueur. Optionnel.
substring() extracts characters from indexStart up to but not including indexEnd. In particular: If indexEnd is omitted, substring() extracts characters to the end of the string. If indexStart is equal to indexEnd, substring() returns an empty string.
The substring() method returns a subset of a string between one index and another, or through the end of the string. Syntax. str.substring(indexStart[, indexEnd]) Parameters. indexStart. An integer between 0 and the length of the string, specifying the offset into the string of the first character to include in the returned substring. indexEnd.
https://www.javascripttutorial.net › javascript-substring
JavaScript Substring (): Extract a Substring from a StringThe substring() method accepts two parameters: startIndex and endIndex: The startIndex specifies the index of the first character to include in the returned substring. The endIndex determines the first character to exclude from the returned substring. In other words, the returned substring doesn’t include the character at the endIndex.
https://dnmtechs.com › javascript-extracting-substrings-before-a-specified-character
JavaScript: Extracting Substrings Before a Specified Character - DNMTechsOne of the simplest ways to extract substrings before a specified character is by using the split() method in JavaScript. This method splits a string into an array of substrings based on a specified separator and returns the resulting array.
