JavaScript and Selenese Parameters
JavaScript can be used with two types of Selenese parameters–script and non-script (usually expressions).
In most cases, you’ll want to access and/or manipulate a test case variable inside the JavaScript snippet used as a Selenese parameter. All variables created in your test case are stored in a JavaScript associative array. An associative array has string indexes rather than sequential numeric indexes. The associative array containing your test case’s variables is named storedVars. Whenever you wish to access or manipulate a variable within a JavaScript snippet, you must refer to it as stored- Vars[’yourVariableName’].
In most cases, you’ll want to access and/or manipulate a test case variable inside the JavaScript snippet used as a Selenese parameter. All variables created in your test case are stored in a JavaScript associative array. An associative array has string indexes rather than sequential numeric indexes. The associative array containing your test case’s variables is named storedVars. Whenever you wish to access or manipulate a variable within a JavaScript snippet, you must refer to it as stored- Vars[’yourVariableName’].
=> JavaScript Usage with Script Parameters
Several Selenese commands specify a script parameter including assertEval, verifyEval, storeEval, and waitForEval. These parameters require no special syntax. A Selenium-IDE user would simply place a snippet of JavaScript code into the appropriate field, normally the Target field (because a script parameter is normally the first or only parameter).
The example below illustrates how a JavaScript snippet can be used to perform a simple numerical calculation:
The example below illustrates how a JavaScript snippet can be used to perform a simple numerical calculation:
This next example illustrates how a JavaScript snippet can include calls to methods, in this case the JavaScript String object’s toUpperCase method and toLowerCase method.
=> JavaScript Usage with Non-Script Parameters
JavaScript can also be used to help generate values for parameters, even when the parameter is not specified to be of type script. However, in this case, special syntax is required–the JavaScript snippet must be enclosed inside curly braces and preceded by the label javascript, as in javascript {*yourCodeHere*}. Below is an example in which the type command’s second parameter value is generated via JavaScript code using this special syntax:
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