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<title>en:variables [BASIC 256 - Language Documentation]</title>
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<h2 class="sectionedit1" id="variables">Variables</h2>
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<p>
Variables that hold numeric values must begin with a letter, and may consist of any number of alpha-numeric characters. They are case sensitive. They may be used interchangeably with numeric constants.<br/>
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Variables that hold string values follow the same rules as numeric variables, but must end with a dollar sign ($). They may be used interchangeably with string constants.
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When you assign a numeric value to a string variable or add a numeric value to a string (concatenate) the number will be automatically converted to a string before the operation is completed. A string value may not be assigned directly to a numeric variable or array element without manually converting it's type using the <a href="en_int.html" class="wikilink1" title="en:int">Int</a> or <a href="en_float.html" class="wikilink1" title="en:float">Float</a> functions.
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<th class="col0" colspan="4">Variable Assignment</th>
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<th class="col0">Operator</th><th class="col1">Name</th><th class="col2">Example</th><th class="col3">Comments</th>
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<td class="col0">=</td><td class="col1">Assign a Number to a Numeric Variable</td><td class="col2">a = 9</td><td class="col3"> </td>
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<td class="col0">=</td><td class="col1">Assign a String to a String Variable</td><td class="col2">z$ = “Hola.”</td><td class="col3"> </td>
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<td class="col0">=</td><td class="col1">Assign a Number to a String Variable</td><td class="col2">q$ = 9.9</td><td class="col3"> </td>
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<td class="col0">+=</td><td class="col1">Add to Numeric Variable</td><td class="col2">a += 7</td><td class="col3">Same as a = a + 7 <sup>1</sup></td>
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<td class="col0">+=</td><td class="col1">Concatenate to String Variable</td><td class="col2">f$ += ”.”</td><td class="col3">Same as f$ = f$ + ”.” <sup>1</sup></td>
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<td class="col0">-=</td><td class="col1">Subtract from Numeric Variable</td><td class="col2">a -= 9</td><td class="col3">Same as a = a - 9 <sup>1</sup></td>
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<td class="col0">*=</td><td class="col1">Multiply Numeric Variable</td><td class="col2">a *= 2</td><td class="col3">Same as a = a * 2 <sup>1</sup></td>
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<td class="col0">/=</td><td class="col1">Divide Numeric Variable</td><td class="col2">a /= 8</td><td class="col3">Same as a = a / 8 <sup>1</sup></td>
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<sup>1</sup> added with version 0.9.9.10
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<div class="docInfo"><bdi>en/variables.txt</bdi> · Last modified: 2012/11/01 09:10 by <bdi>admin</bdi></div>
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