Null object: Difference between revisions
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It is always easy to test for nullness either by querying a variable's type or checking the value of a boolean expression involving a potentially null variable. |
It is always easy to test for nullness either by querying a variable's type or checking the value of a boolean expression involving a potentially null variable. |
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<syntaxhighlight lang=" |
<syntaxhighlight lang="wren">// Declare a variable without giving it an explicit value. |
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var s |
var s |
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