How to use escapeUserProvidedKey method in Playwright Internal

Best JavaScript code snippet using playwright-internal

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Children.js

Source: Children.js Github

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1import { traverseAllChildren, isValidElement } from "./createElement";
2import { extend, noop } from "./util";
3
4export const Children = {
5    only(children) {
6        //only方法接受的参数只能是一个对象,不能是多个对象(数组)。
7        if (isValidElement(children)) {
8            return children;
9        }
10        throw new Error("expect only one child");
11    },
12    count(children) {
13        if (children == null) {
14            return 0;
15        }
16        return traverseAllChildren(children, "", noop);
17    },
18    map(children, func, context) {
19        return proxyIt(children, func, [], context);
20    },
21    forEach(children, func, context) {
22        return proxyIt(children, func, null, context);
23    },
24    toArray: function(children) {
25        return proxyIt(children, K, []);
26    }
27};
28
29function proxyIt(children, func, result, context) {
30    if (children == null) {
31        return [];
32    }
33    mapChildren(children, null, func, result, context);
34    return result;
35}
36
37function K(el) {
38    return el;
39}
40
41function mapChildren(children, prefix, func, result, context) {
42    let keyPrefix = "";
43    if (prefix != null) {
44        keyPrefix = escapeUserProvidedKey(prefix) + "/";
45    }
46    traverseAllChildren(children, "", traverseCallback, {
47        context,
48        keyPrefix,
49        func,
50        result,
51        count: 0
52    });
53}
54const userProvidedKeyEscapeRegex = /\/+/g;
55function escapeUserProvidedKey(text) {
56    return ("" + text).replace(userProvidedKeyEscapeRegex, "$&/");
57}
58
59function traverseCallback(bookKeeping, child, childKey) {
60    const { result, keyPrefix, func, context } = bookKeeping;
61
62    let mappedChild = func.call(context, child, bookKeeping.count++);
63    if (!result) {
64        return;
65    }
66    if (Array.isArray(mappedChild)) {
67        mapChildren(mappedChild, childKey, K, result);
68    } else if (mappedChild != null) {
69        if (isValidElement(mappedChild)) {
70            mappedChild = extend({}, mappedChild);
71            mappedChild.key =
72                keyPrefix +
73                (mappedChild.key && (!child || child.key !== mappedChild.key)
74                    ? escapeUserProvidedKey(mappedChild.key) + "/"
75                    : "") +
76                childKey;
77        }
78        result.push(mappedChild);
79    }
80}
81
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