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gqiogqio
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- Split defintion and registration
- Fix stories
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Diff for: ‎README.md

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[![edit-in-WebComponents.dev](https://webcomponents.dev/assets/ext/edit_in_wcd.svg)](https://webcomponents.dev/edit/VXr2i1M8U1s4He9bOdII)
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[![edit-in-webcomponents.dev](https://webcomponents.dev/assets/ext/edit_in_wcd.svg)](https://webcomponents.dev/edit/VXr2i1M8U1s4He9bOdII)
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# `<json-element>`
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# Credits
@@ -8,3 +10,5 @@ Inspired by [svelte-json-tree](https://github.com/tanhauhau/svelte-json-tree)
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Challenged by [@passle\_](https://twitter.com/passle_) "Can you do it with 0 dependencies?!" 💪
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> Created with [webcomponents.dev](https://webcomponents.dev)
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> Created with [WebComponents.dev](https://webcomponents.dev)

Diff for: ‎src/JSONElement.js

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export default class JSONElement extends HTMLElement {
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constructor() {
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super();
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const shadow = this.attachShadow({ mode: "open" });
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this.value = {};
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}
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connectedCallback() {
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this.render();
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}
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render() {
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this.shadowRoot.innerHTML = `
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<style>
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${JSONElement.styles}
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</style>
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${this.renderNode(undefined, this.value)}`;
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}
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//
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// Main Renders
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//
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renderNode(key, obj) {
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const type = JSONElement.objType(obj);
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switch (type) {
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case "Object":
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case "Array":
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return this.renderParent(type, key, obj);
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default:
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return this.renderKeyValue(key, this.renderValue(type, obj));
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}
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}
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renderValue(type, value) {
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switch (type) {
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case "Boolean":
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return `${value ? "true" : "false"}`;
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case "String":
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return `"${value}"`;
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case "Number":
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return `${value}`;
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case "Date":
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return `${value.toISOString()}`;
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case "Null":
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return "null";
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case "Undefined":
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return "undefined";
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case "Function":
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case "Symbol":
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return `${value.toString()}`;
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default:
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return `###unsupported yet###`;
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}
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}
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renderParent(type, key, value) {
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const summary = `<summary>${this.renderSummaryObject(
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type,
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key,
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value
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)}</summary>`;
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let details = "";
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const keys = Reflect.ownKeys(value);
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keys.forEach((key) => {
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details += this.renderNode(key, value[key]);
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});
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return `<details>${summary}<div>${details}</div></details>`;
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}
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renderKeyValue(key, value) {
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return `<div>${this.renderSpanKey(key)}${this.renderSpanValue(
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value
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)}</div>`;
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}
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renderSpanKey(key) {
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return key ? `<span class="key">${key}: </span>` : "";
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}
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renderSpanValue(value) {
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return value ? `<span class="value">${value}</span>` : "";
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}
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renderSpanLessImportant(value) {
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return value ? `<span class="less">${value}</span>` : "";
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}
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//
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// Summary renders
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//
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renderSummaryObject(type, key, value) {
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const frontkey = this.renderSpanKey(key);
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let openSummary = "";
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let closeSummary = "";
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switch (type) {
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case "Object":
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openSummary = "Object: {";
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closeSummary = "}";
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break;
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case "Array":
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openSummary = "Array: [";
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closeSummary = "]";
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break;
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}
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const keys = Reflect.ownKeys(value);
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const content = keys.reduce((accu, key, index) => {
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if (index > 5) return accu;
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if (index == 5) return accu + ` ${this.renderSpanLessImportant("...")}`;
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// less than 5 items show in summary
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const child = value[key];
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return (
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accu + ` ${this.renderSpanKey(key)}${this.renderSummaryValue(child)}`
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);
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}, "");
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return `${frontkey}${openSummary} ${content} ${closeSummary}`;
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}
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renderSummaryValue(value) {
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const type = JSONElement.objType(value);
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switch (type) {
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case "Object":
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return this.renderSpanLessImportant("{...}");
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case "Array":
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return this.renderSpanLessImportant("[...]");
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default:
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return this.renderSpanValue(this.renderValue(type, value));
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}
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}
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//
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// Tools
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//
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static objType(obj) {
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const type = Object.prototype.toString.call(obj).slice(8, -1);
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if (type === "Object") {
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if (typeof obj[Symbol.iterator] === "function") {
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return "Iterable";
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}
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return obj.constructor.name;
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}
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return type;
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}
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//
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// Styles
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//
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static get styles() {
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return `
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:host {
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font-family: monospace;
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}
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details > div {
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padding-left: 15px;
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}
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.key {
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color: purple;
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}
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.value {
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color: green;
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}
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.less {
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color: grey;
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}
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`;
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}
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}

Diff for: ‎src/index.js

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Original file line numberDiff line numberDiff line change
@@ -1,179 +1,2 @@
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export default class JSONElement extends HTMLElement {
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constructor() {
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super();
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const shadow = this.attachShadow({ mode: "open" });
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this.value = {};
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}
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static get styles() {
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return `
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:host {
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font-family: monospace;
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}
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details > div {
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padding-left: 15px;
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}
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.key {
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color: purple;
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}
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.value {
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color: green;
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}
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.less {
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color: grey;
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}
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`;
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}
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connectedCallback() {
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this.render();
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}
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render() {
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this.shadowRoot.innerHTML = `
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<style>
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${JSONElement.styles}
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</style>
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${this.renderNode(undefined, this.value)}`;
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}
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//
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// Main Renders
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//
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renderNode(key, obj) {
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const type = JSONElement.objType(obj);
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switch (type) {
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case "Object":
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case "Array":
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return this.renderParent(type, key, obj);
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default:
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return this.renderKeyValue(key, this.renderValue(type, obj));
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}
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}
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renderValue(type, value) {
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switch (type) {
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case "Boolean":
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return `${value ? "true" : "false"}`;
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case "String":
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return `"${value}"`;
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case "Number":
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return `${value}`;
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case "Date":
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return `${value.toISOString()}`;
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case "Null":
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return "null";
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case "Undefined":
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return "undefined";
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case "Function":
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case "Symbol":
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return `${value.toString()}`;
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default:
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return `###unsupported yet###`;
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}
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}
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renderParent(type, key, value) {
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const summary = `<summary>${this.renderSummaryObject(
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type,
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key,
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value
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)}</summary>`;
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let details = "";
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const keys = Reflect.ownKeys(value);
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keys.forEach(key => {
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details += this.renderNode(key, value[key]);
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});
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return `<details>${summary}<div>${details}</div></details>`;
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}
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renderKeyValue(key, value) {
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return `<div>${this.renderSpanKey(key)}${this.renderSpanValue(
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value
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)}</div>`;
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}
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renderSpanKey(key) {
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return key ? `<span class="key">${key}: </span>` : "";
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}
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renderSpanValue(value) {
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return value ? `<span class="value">${value}</span>` : "";
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}
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renderSpanLessImportant(value) {
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return value ? `<span class="less">${value}</span>` : "";
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}
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//
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// Summary renders
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//
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renderSummaryObject(type, key, value) {
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const frontkey = this.renderSpanKey(key);
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let openSummary = "";
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let closeSummary = "";
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switch (type) {
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case "Object":
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openSummary = "Object: {";
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closeSummary = "}";
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break;
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case "Array":
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openSummary = "Array: [";
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closeSummary = "]";
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break;
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}
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const keys = Reflect.ownKeys(value);
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const content = keys.reduce((accu, key, index) => {
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if (index > 5) return accu;
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if (index == 5) return accu + ` ${this.renderSpanLessImportant("...")}`;
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// less than 5 items show in summary
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const child = value[key];
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return (
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accu + ` ${this.renderSpanKey(key)}${this.renderSummaryValue(child)}`
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);
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}, "");
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return `${frontkey}${openSummary} ${content} ${closeSummary}`;
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}
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renderSummaryValue(value) {
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const type = JSONElement.objType(value);
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switch (type) {
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case "Object":
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return this.renderSpanLessImportant("{...}");
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case "Array":
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return this.renderSpanLessImportant("[...]");
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default:
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return this.renderSpanValue(this.renderValue(type, value));
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}
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}
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//
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// Tools
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//
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168-
static objType(obj) {
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const type = Object.prototype.toString.call(obj).slice(8, -1);
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if (type === "Object") {
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if (typeof obj[Symbol.iterator] === "function") {
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return "Iterable";
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}
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return obj.constructor.name;
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}
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return type;
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}
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}
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import JSONElement from "./JSONElement";
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export default JSONElement;

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