[merge-deep] Add types (DefinitelyTyped#46907)

types/merge-deep/index.d.ts

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+// Type definitions for merge-deep 3.0
+// Project: https://github.com/jonschlinkert/merge-deep
+// Definitions by: Emily Marigold Klassen <https://github.com/forivall>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+export = mergeDeep;
+
+/** Recursively merge values in a javascript object. */
+declare function mergeDeep<T, U>(orig: T, objects: U): T & U;
+declare function mergeDeep<T, U, V>(orig: T, objects1: U, objects2: V): T & U & V;
+declare function mergeDeep<T, U, V, W>(orig: T, objects1: U, objects2: V, objects3: W): T & U & V & W;
+declare function mergeDeep<T, U, V, W, X>(orig: T, objects1: U, objects2: V, objects3: W, objects4: X): T & U & V & W & X;
+declare function mergeDeep(target: any, ...sources: any[]): any;

types/merge-deep/merge-deep-tests.ts

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+import merge = require('merge-deep');
+
+merge({a: {b: {c: 'c', d: 'd'}}}, {a: {b: {e: 'e', f: 'f'}}});
+
+const objectBase = {
+    test: 'base'
+};
+
+const objectOne = {
+    test: 'one',
+    iamone: true
+};
+
+const objectTwo = {
+    test: 2,
+    iamtwo: true
+};
+
+const objectThree = {
+    iamthree: true,
+    depth: {
+        innerType: 'deep'
+    }
+};
+
+type ExtendedType = typeof objectBase & typeof objectOne;
+const extended: ExtendedType = merge(objectBase, objectOne);
+extended.test === 'one';
+extended.iamone;
+
+type MoreExtendedType = typeof objectBase & typeof objectOne & typeof objectTwo;
+const moreExtended: MoreExtendedType = merge(objectBase, objectOne, objectTwo);
+moreExtended.test === 2;
+moreExtended.iamone;
+moreExtended.iamtwo;
+
+type DeepExtendedType = typeof objectBase & typeof objectOne &
+  typeof objectTwo & typeof objectThree;
+const deepExtended: DeepExtendedType = merge(objectBase, objectOne, objectTwo, objectThree);
+deepExtended.iamone;
+deepExtended.iamtwo;
+deepExtended.iamthree;
+deepExtended.depth.innerType === 'deep';

types/merge-deep/tsconfig.json

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+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictFunctionTypes": true,
+        "strictNullChecks": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "merge-deep-tests.ts"
+    ]
+}

types/merge-deep/tslint.json

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+{ "extends": "dtslint/dt.json" }