How to use the with statement in js? Usage of with statement in js (code)

The content of this article is about how to use the with statement in js? The usage (code) of the with statement in js has certain reference value. Friends in need can refer to it. I hope it will be helpful to you.

The scope of the with statement sets the scope of the code to a specific object. The main purpose is to simplify the work of writing the same object multiple times.

var obj = {
    "name": "hi",
    "age": 18,
    "sex": "boy"
};

// var name1 = obj.name;
// var age1 = obj.age;
// var sex1 = obj.sex;
//
// console.log(name1, age1, sex1);      //hi 18 boy

with (obj) {
    var name2 = name;
    var age2 = age;
    var sex2 = sex;
}

console.log(name2, age2, sex2);     //hi 18 boy

Special reminder: The with statement is not allowed in strict mode, otherwise it will be regarded as a syntax error.

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