What does mental yoga mean in the following sentence?
The isNaN() function requires some
mental yogaat times because it attempts to prove a negative—that the value in a variable is not a number.
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Yoga here is being used as a metaphor for flexibility. Because the function attempts to do what's widely considered impossible -- proving a negative -- it demands that you stretch your mind a bit to comprehend it. In addition to mental yoga, you might run into the phrase mental gymnastics, which has largely the same meaning. |
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