138 lines
2.9 KiB
QML
138 lines
2.9 KiB
QML
import QtQml
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QtObject {
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function set1() {
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const array = [1, 2, 3, 4];
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const [a, b] = [1, 2];
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const [aa, , bb] = array;
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const [aaa = 23, bbb] = array;
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const [a1, b1, ...rest1] = array;
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const [a2, , b2, ...rest2] = array;
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const [a3, b3, ...{
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pop,
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push
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}] = array;
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const [a4, b4, ...[c, d]] = array;
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const obj = {
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_a: 1,
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_b: 2
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};
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const {
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a5,
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b5
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} = obj;
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const {
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a6: a_,
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b6: b1_
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} = obj;
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const {
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a7: a11 = 4,
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b11 = 34,
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c1: b111,
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d1
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} = obj;
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let key = a;
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const {
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[key]: a___
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} = obj;
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}
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function set2() {
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// declare first
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let a, b, a1, b1, c, d, rest, pop, push;
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const array = [1, 2, 3, 4];
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[a, b] = array;
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[a, , b] = array;
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[a = aDefault, b] = array;
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[a, b, ...rest] = array;
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[a, , b, ...rest] = array;
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[a, b, ...{
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pop,
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push
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}] = array;
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[a, b, ...[c, d]] = array;
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const obj = {
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_a: 1,
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_b: 2
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};
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({
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a,
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b
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} = obj); // brackets are required
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({
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a: a1,
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b: b1
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} = obj);
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const complicatedObject = {
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a: 1,
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b: {
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c: 2,
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d: {
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e: 3,
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f: [4, 5, 6]
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}
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},
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g: [7, 8, 9]
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};
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const {
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patron,
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b: {
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mafik,
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d: {
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e,
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f: [, secondF, ...restF]
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}
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},
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g: [firstG, ...restG]
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} = complicatedObject;
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}
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Component.onCompleted: {
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const myFunction = myLambda => {
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const myObject = {
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a: 1,
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b: {
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c: 2,
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d: [3, 4, 5]
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},
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e: {
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f: 6,
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g: {
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h: 7,
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i: [8, 9, 10]
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}
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}
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};
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myLambda(myObject);
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};
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myFunction(({
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a,
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b: {
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c,
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d: [firstD]
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},
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e: {
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f,
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g: {
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h,
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i: [, secondI]
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}
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}
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}) => {
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console.log(a); // 1
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console.log(c); // 2
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console.log(firstD); // 3
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console.log(f); // 6
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console.log(h); // 7
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console.log(secondI); // 9
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});
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}
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}
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