Add replace function

sdk/nodejs/index.ts

@@ -395,6 +395,10 @@ export function pow(base: number, exponent: number): number {
     return Math.pow(base, exponent);
 }
 
+export function replace(input: string, toMatch: string | RegExp, replacement: string): string {
+    return input.replace(toMatch, replacement);
+}
+
 export function sha1(input: string): string {
     const hash = crypto.createHash("sha1");
     hash.update(input);
@@ -424,10 +428,6 @@ export function signum(input: number): number {
     }
 }
 
-export function upper(input: string): string {
-    return input.toUpperCase();
-}
-
 export function slice(input: string[], start: number, end: number): string[] {
     if (start < 0) {
         throw new Error("start must be greater than or equal to 0");
@@ -506,14 +506,18 @@ export function trimspace(input: string): string {
     return input.trim();
 }
 
-export function urlencode(input: string): string {
-    return encodeURIComponent(input);
+export function upper(input: string): string {
+    return input.toUpperCase();
 }
 
 export function uuid(): string {
     return v4().toString();
 }
 
+export function urlencode(input: string): string {
+    return encodeURIComponent(input);
+}
+
 export function values<T>(inputMap: { [k: string]: T }): T[] {
     const keyList = keys(inputMap);
 

sdk/nodejs/tests/tests.ts

@@ -436,6 +436,16 @@ describe("pow", () => {
     });
 });
 
+describe("replace", () => {
+    it("passes Terraform tests", () => {
+        assert.equal(sut.replace("hello", "hel", "bel"), "bello");
+        assert.equal(sut.replace("hello", "nope", "bel"), "hello");
+        assert.equal(sut.replace("hello", /l/g, "L"), "heLLo");
+        assert.equal(sut.replace("hello", /(l)/, "$1"), "hello");
+        assert.equal(sut.replace("helo", /(l)/, "$1$1"), "hello");
+    });
+});
+
 describe("sha1", () => {
     it("passes Terraform tests", () => {
         assert.equal(sut.sha1("test"), "a94a8fe5ccb19ba61c4c0873d391e987982fbbd3");