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This article will explain in detail what operators are in JScript, Xiaobian thinks it is quite practical, so share it with you as a reference, I hope you can gain something after reading this article.

Jscript has a full range of operators, including arithmetic, logic, bit, assignment, and some others.

arithmetic operators

descriptors

Negative-

Increment ++

Decreasing?

Multiplication *

Division/

modulo operation %

addition +

Subtraction-

logical operators

descriptors

Logical NOT!

less than

Less than =

===

Not equal to!=

Logic and &&

logic or||

Condition (ternary operator)?:

comma,

Strictly equal ===

Not strictly equal!==

bitwise operators

descriptors

Bit by bit negation ~

Move left by position>

Unsigned right shift>>>

bitwise and &

bitwise XOR ^

bitwise OR|

assignment operator

descriptors

assignment =

Operative assignment OP=

miscellaneous operator

descriptors

delete delete

typeof operator typeof

void void

instanceof instanceof

new new

in in

The difference between ==(equality) and ===(strict equality) is that the identity operator forces values of different types before comparison. For example, comparing the identity pair string "1" with the value 1 will result in true. Strict equality does not coerce values of different types, so it assumes that the string "1" is not the same as the numeric value 1.

Basic strings, numbers, and booleans are compared by value. If their values are the same, the comparison results in equality. Objects (including Array, Function, String, Number, Boolean, Error, Date, and RegExp objects) are compared by reference. Even if two variables of these types have the same value, the comparison results in true only if they happen to be the same object.

For example:

//Two base strings with the same value.

var string1 = "Hello";

var string2 = "Hello";

//Two String objects with the same value.

var StringObject1 = new String(string1);

var StringObject2 = new String(string2);

//The comparison result is true.

if (string1 == string2)

//Execute certain commands (which will be run).

//The comparison result is false.

if (StringObject1 == StringObject2)

//Execute certain commands (will not run).

//To compare the values of String objects,

//Use toString() or valueOf() methods.

if (StringObject1.valueOf() == StringObject2)

//Execute certain commands (which will be run).

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