Note that array indexes must be integers greater than or equal to 0 and less than 232 -1. If you use a
number that is too large, a negative number, or a floating-point number (or a boolean, an object, or other
value), JavaScript converts it to a string and uses the resulting string as the name of an object property,
not as an array index.
分享到：
发表评论
-
Extending Built-in Types
2009-01-08 13:55 728The Function.apply( ) method is ... -
Breakpoints using closures
2009-01-07 13:43 869// // This function implements ... -
Private properties with closures
2009-01-07 13:13 767// // This function adds proper ... -
Constructor Functions
2009-01-07 00:42 763the new operator creates a new ... -
Functions as Methods
2009-01-07 00:39 809When a function is invoked as a ... -
The callee Property
2009-01-07 00:02 667In addition to its array elemen ... -
Variable-Length Argument Lists: The Arguments Obje
2009-01-06 23:06 793The Arguments object has one ve ... -
Function Literals
2009-01-06 21:50 705Although function literals crea ... -
Nested Functions
2009-01-06 21:09 769Nested functions may be defined ... -
Deleting Array Elements
2009-01-05 22:11 572The delete operator sets an arr ... -
The valueOf() Method
2009-01-05 18:05 748... -
The toLocaleString() Method
2009-01-05 18:02 858In ECMAScript v3 and JavaScript ... -
The constructor Property
2009-01-05 17:51 794[size=medium]Since constructor ... -
the empty statement
2009-01-05 00:29 788[size=medium]When you intention ... -
with
2009-01-05 00:27 686[size=medium]The with statement ... -
try/catch/finnaly
2009-01-05 00:17 892If control leaves the try bloc ... -
throw
2009-01-04 23:56 693The tHRow statement has the fol ... -
return
2009-01-04 23:52 817If a function executes a return ... -
functions
2009-01-04 23:48 799[size=medium]Technically speaki ... -
Labels
2009-01-04 23:01 711Label names are distinct from v ...
相关推荐
7.2 Reading and Writing Array Elements 142 7.3 Sparse Arrays 144 7.4 Array Length 144 7.5 Adding and Deleting Array Elements 145 7.6 Iterating Arrays 146 7.7 Multidimensional Arrays 148 7.8 Array ...
- **Textual Input and Output**: Reading and writing text data. **Searching**: Searching algorithms are essential for finding data within a dataset. Wirth covers several techniques: - **Linear Search...
Reading and Writing Binary Data 23 ZIP Archives 32 Object Streams and Serialization 39 File Management 59 New I/O 65 Regular Expressions 75 Chapter 2: XML 87 Introducing XML 88 Parsing an ...
- **Array Basics**: Introduction to arrays, including declaration, initialization, and accessing elements. - **Multidimensional Arrays**: Explanation of two-dimensional and higher-dimensional arrays ...
The number of bytes written is proportional to the number of elements in the array to be written and the transport size parameter. S7Com_W+R_Loop.vi regularly writes to and reads from a pair of DBs ...
The document explains file handling in C, which involves reading from and writing to files: - **When Do We Use Files?**: Discussion on scenarios where file handling is necessary. - **Streams and ...
Appendix C Generating and Reading Assembly Listings Appendix D MASM Reserved Words Appendix E Default Segment Names Appendix F Error Messages Glossary INDEX Microsoft Macro Assembler - White Paper ...
Writing Context Managers The contextlib module PEP 366: Explicit Relative Imports From a Main Module PEP 370: Per-user site-packages Directory PEP 371: The multiprocessing Package PEP 3101: ...
This package provides CPython bindings for reading and writing MessagePack data. Install --------- You can use ``pip`` or ``easy_install`` to install msgpack:: $ easy_install msgpack-python or $...
Writing to a File Recipe 2.3. Searching and Replacing Text in a File Recipe 2.4. Reading a Specific Line from a File Recipe 2.5. Counting Lines in a File Recipe 2.6. Processing Every Word in ...
#### 一、词汇元素(Lexical Elements) **定义：** 设计文件的文本是一系列词汇元素的序列。词汇元素分为以下几类： - **分隔符(Delimiters)**：用于区分不同部分的符号。 - **标识符(Identifiers)**（可能是保留词...
* Written and developed by Camera Design Dept.53 * * Copyright Canon Inc. 2006 All Rights Reserved * * * ******************************************************************************* * File Update ...
Further Reading......................................................................................................17 Conclusion.........................................................................