3rd-party/linux-kernel-module-cheat
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nodejs object_to_json

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Ciro Santilli 六四事件 法轮功
2020-09-27 01:00:00 +00:00
parent b3401b61ed
commit 89593b97c2
3 changed files with 93 additions and 24 deletions
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51
rootfs_overlay/lkmc/nodejs/object_to_string.js
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@@ -2,29 +2,48 @@
// https://cirosantilli.com/linux-kernel-module-cheat#node-js
const util = require('util');
class MyClassUtilInspectCustom {
class MyClassUtilInspectCustomSubobject {
constructor(a, b) {
this.a = a;
this.b = b;
}
[util.inspect.custom]() {
return `my type is MyClassUtilInspectCustom and a is ${this.a} and b is ${this.b}`;
return `my type is MyClassUtilInspectCustomSubobject and a is ${this.a} and b is ${this.b}`;
}
}
let my_object = new MyClassUtilInspectCustom(1, 2);
class MyClassUtilInspectCustom {
constructor(a, b, subobject) {
this.a = a;
this.b = b;
this.subobject = subobject;
}
[util.inspect.custom]() {
return `my type is MyClassUtilInspectCustom and a is ${this.a} and b is ${this.b} and subobject is ${util.inspect(this.subobject)}`;
}
}
let my_object = new MyClassUtilInspectCustom(1, 2, new MyClassUtilInspectCustomSubobject(3, 4));
// Affected.
console.log('util.inspect');
console.log(util.inspect(my_object));
// Affected.
console.log('console.log');
console.log(my_object);
// Not affected.
console.log('toString');
console.log(my_object.toString());
// Not affected.
console.log('toString implicit +');
console.log('implicit ' + my_object);
// Not affected.
console.log('template string');
console.log(`${my_object}`);
console.log();
class MyClassToString {
class MyClassToStringSubobject {
constructor(a, b) {
this.a = a;
this.b = b;
@@ -34,10 +53,30 @@ class MyClassToString {
}
}
my_object = new MyClassToString(1, 2);
class MyClassToString {
constructor(a, b, subobject) {
this.a = a;
this.b = b;
this.subobject = subobject;
}
toString() {
return `my type is MyClassToString and a is ${this.a} and b is ${this.b} and subobject is ${this.subobject}`;
}
}
my_object = new MyClassToString(1, 2, new MyClassToStringSubobject(3, 4));
// Affected.
console.log('util.inspect');
console.log(util.inspect(my_object));
// Affected.
console.log('console.log');
console.log(my_object);
// Affected.
console.log('toString');
console.log(my_object.toString());
// Affected.
console.log('toString implicit +');
console.log('implicit ' + my_object);
// Affected.
console.log('template string');
console.log(`${my_object}`);