Web hosting reviews - 1100 Part IV . JavaScript Core Language Reference
1100 Part IV . JavaScript Core Language Reference constructor See string.constructor (Chapter 34). length Value: Integer Read-Only Compatibility NN2 NN3 NN4 . NN6 . IE3/J1 IE3/J2 . IE4 . IE5 . IE5.5 . As the argumentsproperty of a function proves, JavaScript is very forgiving about matching the number of parameters passed to a function with the number of parameter variables defined for the function. But a script can examine the length property of a function object to see precisely how many parameter variables are defined for a function. A reference to the property starts with the function name rep resenting the object. For example, consider the following function definition shell: function identify(name, rank, serialNum) { … } A script statement anywhere outside of the function can read the number of parameters with the reference: identify.length The value of the property in the preceding example is 3. The lengthproperty supercedes the NN-only arityproperty. prototype See Array.prototype (Chapter 37). Methods apply([thisObj[, argumentsArray]]) call([thisObj[, arg1[, arg2[,…argN]]]]) Returns: Nothing. NN2 NN3 NN4 NN6 IE3/J1 IE3/J2 IE4 IE5 IE5.5 Compatibility . The apply() and call()methods of a function object invoke the function. This may seem redundant to the normal way in which script statements invoke functions by simply naming the function, following it with parentheses, passing parameters, and so on. The difference with these methods is that you can invoke the functionObject.apply()
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