Check the substring syntax: substring(from, to) from Required. The index where to start the extraction. First character is at index 0 . to Optional. The index where to stop the extraction. If omitted, it extracts the rest of the string. I'll grant you it's a bit odd. Didn't know that myself. What you want to do is. alert('helloworld'.substring(5, 7));

2020-12-06

right (JavaScript) Gets a substring starting at the right. rpad (JavaScript) Fills a string on Definition and Usage. The substring () method extracts the characters from a string, between two specified indices, and returns the new sub string. This method extracts the characters in a string between "start" and "end", not including "end" itself. 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.

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2009 — if(c.indexOf(nameEQ) == 0) return this.cookies[name] = c.substring(nameEQ.​length,c.length);. 58. } 59. } 60. return null;. 61.

2019-09-09 · The JavaScript indexOf() method is used to determine if a string contains a given substring. It searches for the substring in a string and returns the index of the first such occurrence of the specified string. If the substring is not found, the indexOf() method returns -1.

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JavaScript-problem: använd den första bokstaven i flera strängar s1 = name.​substring(0, 1).toUpperCase(); String nameCapitalized = s1 + name.substring(1);​ 

right (JavaScript) Gets a substring starting at the right.

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