Useless instructions: Difference between revisions
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=={{header|J}}==
Here, we will focus on J's verb <code>>:</code>. This has two meanings, and both of them are redundant within the language.
First, <code>X >: Y</code> tests whether X is greater than or equal to Y. And, J has several other ways of accomplishing this same task. For example, if X is greater than or equal to Y, then Y is less than or equal to X, so an equivalent expression would be <code>Y <: X</code>. Another approach would be to test that X is not less than Y, which might be expressed as <code> -.X < Y</code>
Second, <code>>: Y</code> increments the value obtained from Y (it does not modify Y). And, J also has several other ways of accomplishing this task. For example: <code>1+Y</code>. Or, we could express this in polynomial form as <code>1 1 p. Y</code>, or we could subtract negative 1. Etc.
J has many other equally useless instructions, of course.
=={{header|jq}}==
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