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Prototype 字符串处理：方法操作使用例子 - 学习如何操纵DOM和AJAX使用Prototype JavaScript框架.Prototype提高了一个有用的方法，从琐碎的一系列复杂的String对象.
这里是所有函数列表，字符串处理的例子.
Prototype字符串方法:
注: 确保你有至少1.6版本的的prototype.js.
| Methods | Description |
|---|---|
| 检查是否该字符串是“空白”，意思是空的或含有唯一的空白. | |
| 转换成驼峰相当于由破折号分隔的字符串。例如，'foo-bar“将被转换为'fooBar'. | |
| Capitalizes the first letter of a string and downcases all the others. | |
| Replaces every instance of the underscore character ("_") by a dash ("-"). | |
| Checks if the string is empty. | |
| Checks if the string ends with substring. | |
| Converts HTML special characters to their entity equivalents. | |
| Evaluates the JSON in the string and returns the resulting object. | |
| Evaluates the content of any script block present in the string. Returns an array containing the value returned by each script. | |
| Extracts the content of any script block present in the string and returns them as an array of strings. | |
| Returns the string with every occurrence of a given pattern replaced by either a regular string, the returned value of a function or a Template string. | |
| Check if the string contains a substring. | |
| Returns a debug-oriented version of the string. | |
| Treats the string as a Template and fills it with object's properties. | |
| Check if the string is valid JSON by the use of regular expressions. This security method is called internally. | |
| Parses a URI-like query string and returns an object composed of parameter/value pairs. | |
| Allows iterating over every occurrence of the given pattern | |
| Checks if the string starts with substring. | |
| Strips all leading and trailing whitespace from a string. | |
| Strips a string of anything that looks like an HTML script block. | |
| Strips a string of any HTML tag. | |
| Returns a string with the first count occurrences of pattern replaced by either a regular string, the returned value of a function or a Template string. | |
| Used internally by ObjectRange. Converts the last character of the string to the following character in the Unicode alphabet. | |
| Concatenates the string count times. | |
| Splits the string character-by-character and returns an array with the result. | |
| Returns a JSON string. | |
| Parses a URI-like query string and returns an object composed of parameter/value pairs. | |
| Truncates a string to the given length and appends a suffix to it (indicating that it is only an excerpt). | |
| Converts a camelized string into a series of words separated by an underscore ("_"). | |
| Strips tags and converts the entity forms of special HTML characters to their normal form. | |
| Strips comment delimiters around Ajax JSON or JavaScript responses. This security method is called internally. |