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d6a4c14e1b
Full restructure of the spec into new sections for operators, statements, scripts, functions, lambdas, and regexes. Split of operators into 6 sections, a table, reference, array, numeric, boolean, and general. Clean up of all operators sections. Sporadic clean up else where.
15 lines
603 B
Plaintext
15 lines
603 B
Plaintext
[[painless-lambdas]]
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=== Lambdas
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Lambda expressions and method references work the same as in https://docs.oracle.com/javase/tutorial/java/javaOO/lambdaexpressions.html[Java].
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[source,painless]
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---------------------------------------------------------
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list.removeIf(item -> item == 2);
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list.removeIf((int item) -> item == 2);
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list.removeIf((int item) -> { item == 2 });
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list.sort((x, y) -> x - y);
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list.sort(Integer::compare);
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---------------------------------------------------------
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You can make method references to functions within the script with `this`,
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for example `list.sort(this::mycompare)`. |