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| Language Element |
Description |
| $1...$9 Properties | Returns the nine most-recently memorized portions found during pattern matching. |
| abs Method | Returns the absolute value of a number. |
| acos Method | Returns the arccosine of a number. |
| ActiveXObject Object | Enables and returns a reference to an Automation object. |
| Addition Operator (+) | Sums two numbers or concatenates two strings. |
| anchor Method | Places an HTML anchor with a NAME attribute around specified text in the object. |
| arguments Property | Returns an array containing each argument passed to the currently executing function. |
| Array Object | Provides support for creation of arrays of any data type. |
| asin Method | Returns the arcsine of a number. |
| Assignment Operator (=) | Assigns a value to a variable. |
| atan Method | Returns the arctangent of a number. |
| atan2 Method | Returns the angle (in radians) from the X axis to a point (y,x). |
| atEnd Method | Returns a Boolean value indicating if the enumerator is at the end of the collection. |
| big Method | Places HTML <BIG> tags around text in a String object. |
| Bitwise AND Operator (&) | Performs a bitwise AND on two expressions. |
| Bitwise Left Shift Operator (<<) | Shifts the bits of an expression to the left. |
| Bitwise NOT Operator (~) | Performs a bitwise NOT (negation) on an expression. |
| Bitwise OR Operator (|) | Performs a bitwise OR on two expressions. |
| Bitwise Right Shift Operator (>>) | Shifts the bits of an expression to the right, maintaining sign. |
| Bitwise XOR Operator (^) | Performs a bitwise exclusive OR on two expressions. |
| blink Method | Places HTML <BLINK> tags around text in a String object. |
| bold Method | Places HTML <B> tags around text in a String object. |
| Boolean Object | Creates a new Boolean value. |
| break Statement | Terminates the current loop, or if in conjunction with a label, terminates the associated statement. |
| caller Property | Returns a reference to the function that invoked the current function. |
| catch Statement | Contains statements to execute when an error occurs in code within the try block. |
| @cc_on Statement | Activates conditional compilation support. |
| ceil Method | Returns the smallest integer greater than or equal to its numeric argument. |
| charAt Method | Returns the character at the specified index. |
| charCodeAt Method | Returns the Unicode encoding of the specified character. |
| Comma Operator (,) | Causes two expressions to be executed sequentially. |
| // (Single-line Comment Statement) | Causes single-line comments to be ignored by the JavaScript parser. |
| /*..*/ (Multiline Comment Statement) | Causes multiline comments to be ignored by the JavaScript parser. |
| Comparison Operators | Returns a Boolean value indicating the result of the comparison. |
| compile Method | Compiles a regular expression into an internal format. |
| Compound Assignment Operators | List of compound assignment operators. |
| concat Method (Array) | Returns a new array consisting of a combination of two arrays. |
| concat Method (String) | Returns a String object containing the concatenation of two supplied strings. |
| Conditional Compilation | Allows the use of new JavaScript language features without sacrificing compatibility with browsers that don't support the features. |
| Conditional Compilation Variables | List of predefined variables used with conditional compilation. |
| Conditional (trinary) Operator (?:) | Executes one of two expressions depending on a condition. |
| constructor Property | Specifies the function that creates an object. |
| continue Statement | Stops the current iteration of a loop, and starts a new iteration. |
| cos Method | Returns the cosine of a number. |
| Data Type Conversion | Description of automatic data type conversion in JScript. |
| Date Object | Enables basic storage and retrieval of dates and times. |
| Decrement Operator (--) | Decrements a variable by one. |
| delete Operator | Deletes a property from an object, or removes an element from an array. |
| description Property | Returns or sets the descriptive string associated with a specific error. |
| Dictionary Object | Object that stores data key, item pairs. |
| dimensions Method | Returns the number of dimensions in a VBArray. |
| Division Operator (/) | Divides two numbers and returns a numeric result. |
| do...while Statement | Executes a statement block once, and then repeats execution of the loop until a condition expression evaluates to false. |
| E Property | Returns Euler's constant, the base of natural logarithms. |
| Enumerator Object | Enables enumeration of items in a collection. |
| Equality Operator (==) | Compares two expressions to determine if they are equal. |
| Error Object | An object that contains information about errors that occur while JavaScript code is running. |
| escape Method | Encodes String objects so they can be read on all computers. |
| eval Method | Evaluates JavaScript code and executes it. |
| exec Method | Executes a search for a match in a specified string. |
| exp Method | Returns e (the base of natural logarithms) raised to a power. |
| FileSystemObject Object | Provides access to a computer's file system. |
| fixed Method | Places HTML <TT> tags around text in a String object. |
| floor Method | Returns the greatest integer less than or equal to its numeric argument. |
| fontcolor Method | Places an HTML <FONT> tag with the COLOR attribute around the text in a String object. |
| fontsize Method | Places an HTML <FONT> tag with the SIZE attribute around the text in a String object. |
| for Statement | Executes a block of statements for as long as a specified condition is true. |
| for...in Statement | Executes one or more statements for each element of an object or array. |
| fromCharCode Method | Returns a string from a number of Unicode character values. |
| Function Object | Creates a new function. |
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