init 3

node_modules/react-style-singleton/dist/es2015/index.js

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+export { styleSingleton } from './component';
+export { stylesheetSingleton } from './singleton';
+export { styleHookSingleton } from './hook';

node_modules/react-style-singleton/dist/es2015/singleton.js

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+import { getNonce } from 'get-nonce';
+function makeStyleTag() {
+    if (!document)
+        return null;
+    var tag = document.createElement('style');
+    tag.type = 'text/css';
+    var nonce = getNonce();
+    if (nonce) {
+        tag.setAttribute('nonce', nonce);
+    }
+    return tag;
+}
+function injectStyles(tag, css) {
+    // @ts-ignore
+    if (tag.styleSheet) {
+        // @ts-ignore
+        tag.styleSheet.cssText = css;
+    }
+    else {
+        tag.appendChild(document.createTextNode(css));
+    }
+}
+function insertStyleTag(tag) {
+    var head = document.head || document.getElementsByTagName('head')[0];
+    head.appendChild(tag);
+}
+export var stylesheetSingleton = function () {
+    var counter = 0;
+    var stylesheet = null;
+    return {
+        add: function (style) {
+            if (counter == 0) {
+                if ((stylesheet = makeStyleTag())) {
+                    injectStyles(stylesheet, style);
+                    insertStyleTag(stylesheet);
+                }
+            }
+            counter++;
+        },
+        remove: function () {
+            counter--;
+            if (!counter && stylesheet) {
+                stylesheet.parentNode && stylesheet.parentNode.removeChild(stylesheet);
+                stylesheet = null;
+            }
+        },
+    };
+};

node_modules/react-style-singleton/dist/es5/hook.d.ts

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+/**
+ * creates a style on demand
+ */
+declare type StyleSingletonHook = (
+/**
+ * styles to create
+ */
+styles: string, 
+/**
+ * indication that styles should be reapplied on change
+ */
+isDynamic?: boolean) => void;
+/**
+ * creates a hook to control style singleton
+ * @see {@link styleSingleton} for a safer component version
+ * @example
+ * ```tsx
+ * const useStyle = styleHookSingleton();
+ * ///
+ * useStyle('body { overflow: hidden}');
+ */
+export declare const styleHookSingleton: () => StyleSingletonHook;
+export {};