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A third way to pass variables between pages is to include them in the call for the next page. The list of arguments, called the query string, is preceded by a question mark, and each argument specification follows the format: ''name=value''. The ampersand character is used as the list separator character. An example of this technique is ''<code>sample.html?arg1=foo&arg2=bar</code>''. The following page can then extract these values by performing [[regular expression]] operations on the <code>window.___location</code> property.
There is also an old [[Hack (technology slang)|hack]] that still works on most browsers: the '''window.name''' property can be set to string data which can then be retrieved by the next page to load into the window.
===Numbers===
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