Extracting parts of a string - Revision history

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Ed Poor at 16:18, June 29, 2011

2011-06-29T16:18:00Z

Ed Poor: category:Programming Functions

2011-06-24T16:44:13Z

category:Programming Functions

Ed Poor: introduction to the differences between Java, PHP, and JavaScript

2011-06-24T16:43:44Z

introduction to the differences between Java, PHP, and JavaScript

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'''Extracting parts of a string''' works slightly different in major computer languages. Java and PHP take entirely different approaches, while JavaScript combines the best of each.

Java has the substring method [http://download.oracle.com/javase/1,5.0/docs/api/java/lang/String.html#substring(int, int)] which extracts a string beginning at the first argument, and ending just before the second argument. Each argument is an index into the string, taken as an offset from the first character.

PHP has the substr function, taking three arguments. The first is the string, and the next two are start and length. Like Java, the start argument is an offset from the first character.

The substring method in JavaScript works the same as in Java. The substr method in JavaScript is basically the same as in PHP, with JavaScript's two arguments corresponding to the last 2 arguments in PHP. However, in Javascript, a negative start is treated the same as zero.

← Older revision		Revision as of 15:05, June 23, 2016
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	The substring method in JavaScript works the same as in Java. The substr method in JavaScript is basically the same as in PHP, with JavaScript's two arguments corresponding to the last 2 arguments in PHP. However, in Javascript, a negative start is treated the same as zero.		The substring method in JavaScript works the same as in Java. The substr method in JavaScript is basically the same as in PHP, with JavaScript's two arguments corresponding to the last 2 arguments in PHP. However, in Javascript, a negative start is treated the same as zero.

−	[[~~category~~:Computer Programming]]	+	[[Category:Computer Programming]]

← Older revision		Revision as of 01:32, April 19, 2013
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−	'''Extracting parts of a string''' works slightly different in major computer languages. Java and PHP take entirely different approaches, while JavaScript combines the best of each.	+	'''Extracting parts of a string''' works slightly different in major [[programming language\|computer languages]]. [[Java]] and [[PHP]] take entirely different approaches, while [[JavaScript]] combines the best of each.

	Java has the substring method [http://download.oracle.com/javase/1,5.0/docs/api/java/lang/String.html#substring(int, int)] which extracts a string beginning at the first argument, and ending just before the second argument. Each argument is an index into the string, taken as an offset from the first character.		Java has the substring method [http://download.oracle.com/javase/1,5.0/docs/api/java/lang/String.html#substring(int, int)] which extracts a string beginning at the first argument, and ending just before the second argument. Each argument is an index into the string, taken as an offset from the first character.

← Older revision		Revision as of 23:20, August 13, 2012
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	The substring method in JavaScript works the same as in Java. The substr method in JavaScript is basically the same as in PHP, with JavaScript's two arguments corresponding to the last 2 arguments in PHP. However, in Javascript, a negative start is treated the same as zero.		The substring method in JavaScript works the same as in Java. The substr method in JavaScript is basically the same as in PHP, with JavaScript's two arguments corresponding to the last 2 arguments in PHP. However, in Javascript, a negative start is treated the same as zero.

−	[[category:Computer ~~programming~~]]	+	[[category:Computer Programming]]

← Older revision		Revision as of 16:18, June 29, 2011
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	The substring method in JavaScript works the same as in Java. The substr method in JavaScript is basically the same as in PHP, with JavaScript's two arguments corresponding to the last 2 arguments in PHP. However, in Javascript, a negative start is treated the same as zero.		The substring method in JavaScript works the same as in Java. The substr method in JavaScript is basically the same as in PHP, with JavaScript's two arguments corresponding to the last 2 arguments in PHP. However, in Javascript, a negative start is treated the same as zero.

−	[[category:~~Programming Functions~~]]	+	[[category:Computer programming]]

← Older revision		Revision as of 16:44, June 24, 2011
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	The substring method in JavaScript works the same as in Java. The substr method in JavaScript is basically the same as in PHP, with JavaScript's two arguments corresponding to the last 2 arguments in PHP. However, in Javascript, a negative start is treated the same as zero.		The substring method in JavaScript works the same as in Java. The substr method in JavaScript is basically the same as in PHP, with JavaScript's two arguments corresponding to the last 2 arguments in PHP. However, in Javascript, a negative start is treated the same as zero.
		+
		+	[[category:Programming Functions]]