speedtest infinity

ECMAScript defines 5 arithmetic operators, plus, minus, multiply, divide, and modulo (take-up). If the value of the arithmetic operation is not numeric, then the background will first convert it to a numeric value (implicit conversion) using the number () transformation function.One, additionvarbox = 1 + 2;//equals 3 　　 varbox = 1 + NaN;//Nan, as long as one nan is Nan 　　 varbox = Infinity + Infinity;//

the valuevar box = '-box//-89 '; value string converted to numeric valuevar box = ' ab ';-box//nan, string contains non-numeric converted to NaNvar box = false;-box//0, Boolean converted to corresponding valuevar box = 2.3;-box//-2.3, no changevar box = {Tostring:function () {return 1;}-box;}//-1, do not set ToString or valueof is NanNote: addition and subtraction are generally used for arithmetic operations, and type conversions can be made to the above.Three, arithmetic operatorsECMAScript de

of the binary code;2 "To find the binary of the anti-code, will be 0 to replace 1, 1 is replaced by 0;"3 "Get the binary Anti-code plus 1.// 18 binary code 0000 0000 0000 0000 0000 0000 0001 0010// negation code 1111 1111 1111 1111 1111 1111 1110 1101// Anti-code plus 1 1//———————————————————————————— ————————————————————————————————————————————————// 1111 1111 1111 1111 1111 1111 1110 1110

operators is comparable to equal operators. If you do not have the ability to test two value relationships, statements such as if...else and loops will be useless. There are 3 Boolean operators: Non (not), with (and), and or (or).1. Logical Non-The logical non-operator consists of an exclamation mark (! ) represents any value that can be applied to the ECMAScript. Regardless of the data type of this value, this operator returns a Boolean value. The logical non-operator first converts its operan

of 134217726. 3. boolean operator 3. 1. Non-logical Logical non-operator (!) This operator can be used for any value in ECMAScript to return a Boolean value. When this operator is used for the value, the current value is first converted to a Boolean value, and then reverse it. The specific conversion rules are as follows: I. If the operand is an object, false is returned; Ii. If the operand is a Null String, true is returned; Iii. If the operand is a non-null string, false is returned; Iv. If t

the technique of setting infinite constants in programmingIf the scope of the data in the problem is clear, then the infinite setting is not a problem, in the ambiguous case, many programmers take 0x7fffffff as infinity, because this is the maximum value of 32-bit int. If this infinity is used only for general comparisons (such as the initial value of the min variable at the minimum), then 0x7fffffff is a p

rules: Different values to get 1".8, Boolean operators: Logical non (not) logic and (and) logic or (or) 3 operations.9, logical non (!) ) can be used with any data type and returns a Boolean value. Rules for logical non-operator adherence:1) null, undefined, NaN, empty string, 0 will return true;2) returns false for non-empty strings, objects, non-0 values (including Infinity Infinity)　　Summary : You can d

default all integers in ECMAScript are signed integers.Of course there are unsigned integers, and for unsigned integers the 32nd bit no longer represents symbols because unsigned integers can only be positive numbers, unsigned integers because they have one extra bit to represent a larger number.When you apply a bit operation to a special Nan and infinity value, both values are treated as a limit.If you apply a bitwise operator to a non-numeric value

artificial intelligence has been a Turing test for nearly a century, but I think the Turing test is a far-fetched test to determine whether life cannot be relied upon for such tests. Must begin with the essential meaning of life. And this "self-awareness" is possible-see if you can identify yourself. It suddenly occurred to me that the whole recursive theory was about self-awareness. A recursive function is a form of life that is self-aware-so powerful that when recursive function calls itself

operatorAutomatic type conversions are performed in cases where the operand is not a numeric value.1. Multiplication (*)Special rules:1, the operand is the numerical value, performs the conventional multiplication computation;2, there is Nan, then nan;3, Infinity by 0, for Nan;4, Infinity by non 0, for Infinity or-infinity