For exactly three terms, you can use this expression: (a ^ b ^ c) && !(a && b && c) The first part is true iff one or three of the terms are true. The second part of the expression ensures that not all three are true. Note that the above expression does NOT generalize … Read more
Use the logical “OR” operator, that is ||. if (A || B) Note that if you use string comparisons in the conditions, you need to perform a comparison for each condition: if ( var1 == “A” || var1 == “B” ) If you only do it in the first one, then it will always return … Read more
AFAIK the closest you can get is to use &, |, and ^: >>> arr = np.array([1, 2, 1, 2, 3, 6, 9]) >>> (2 < arr) & (arr < 6) array([False, False, False, False, True, False, False], dtype=bool) >>> (2 < arr) | (arr < 6) array([ True, True, True, True, True, True, True], … Read more
It’s NOT, AND, OR, from highest to lowest according to the documentation on Operator precedence Here is the complete precedence table, lowest precedence to highest. A row has the same precedence and chains from left to right 0. := 1. lambda 2. if – else 3. or 4. and 5. not x 6. in, not … Read more
In many cases, Python looks and behaves like natural English, but this is one case where that abstraction fails. People can use context clues to determine that “Jon” and “Inbar” are objects joined to the verb “equals”, but the Python interpreter is more literal minded. if name == “Kevin” or “Jon” or “Inbar”: is logically … Read more
What are other use cases of this, Conciseness (and therefore clarity, as soon as you get used to it, since after all it does not sacrifice readability at all!-) any time you need to check something and either use that something if it’s true, or another value if that something is false (that’s for and … Read more
The operators and and or are short-circuiting which means that if the result of the expression can be deduced from evaluating only the first operand, the second is not evaluated. For example if you have the expression a or b and a evaluates to true then it doesn’t matter what b is, the result of … Read more
However, I know some that some compilers will exit the boolean expression entirely if the first condition fails. Is this true with Java? Yes, that is known as Short-Circuit evaluation.Operators like && and || are operators that perform such operations. Or is the order of evaluation not guaranteed? No,the order of evaluation is guaranteed(from left … Read more
Yes, you can always use this: var tata = Boolean(toto); And here are some tests: for (var value of [0, 1, -1, “0”, “1”, “cat”, true, false, undefined, null]) { console.log(`Boolean(${typeof value} ${value}) is ${Boolean(value)}`); } Results: Boolean(number 0) is false Boolean(number 1) is true Boolean(number -1) is true Boolean(string 0) is true Boolean(string 1) … Read more
You could do this with MVEL or JUEL. Both are expression language libraries, examples below are using MVEL. Example: System.out.println(MVEL.eval(“true && ( false || ( false && true ) )”)); Prints: false If you literally want to use ‘T’ and ‘F’ you can do this: Map<String, Object> context = new java.util.HashMap<String, Object>(); context.put(“T”, true); context.put(“F”, … Read more