The Command Line API contains a collection of convenience functions for performing common tasks: selecting and inspecting DOM elements, displaying data in readable format, stopping and starting the profiler, and monitoring DOM events.
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$0 - $4
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$0 returns the most recently selected element or JavaScript object, $1 returns the second most recently selected one, and so on
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$1
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$(selector)
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returns the reference to the first DOM element with the specified CSS selector
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$('img')
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$$(selector)
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returns an array of elements that match the given CSS selector
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$$('img')
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$x(path)
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returns an array of DOM elements that match the given XPath expression
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$x('//p[a]')
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monitorEvents(object[, events])
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logs to the console when one of the specified events occurs on the specified object
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monitorEvents(window, "resize")
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unmonitorEvents(object[, events])
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stops monitoring events for the specified object and events
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monitorEvents(window)
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debug(function)
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invokes debugger and breaks inside the function
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debug(loginUser)
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keys(object)
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returns an array containing the names of the properties belonging to the specified object
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keys(user)
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monitor(function)
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logs a message to the console that indicates the function name along with the arguments that are passed
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monitor(loginUser)
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profile([name])
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starts a JavaScript CPU profiling session with an optional name
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profile('User Login')
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profileEnd([name])
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stops a JavaScript CPU profiling session with an optional name
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profileEnd('User Login')
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table(data[, columns])
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logs object data with table formatting by passing in a data object in with optional column headings
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table(user)
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undebug(function)
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stops the debugging of the specified function
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undebug(loginUser)
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unmonitor(function)
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stops the monitoring of the specified function
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unmonitor(loginUser)
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values(object)
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returns an array containing the values of all properties belonging to the specified object
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values(user)
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$_
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returns the value of the most recently evaluated expression
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$_
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clear()
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clears the console of its history
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clear()
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copy(object)
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copies a string representation of the specified object to the clipboard
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copy($0)
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dir(object)
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displays an object-style listing of all the specified object’s properties
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dir($0), dir(myObject)
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dirxml(object)
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prints an XML representation of the specified object, as seen in the Elements tab
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dirxml($0), dirxml(myObject)
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inspect(object/function)
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opens and selects the specified element or object in the appropriate panel
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inspect(document.body)
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