restructure project, add claudemd

web/basic.ts

@@ -0,0 +1,56 @@
+export function capitalizeFirstLetter(input: string): string {
+    return input.charAt(0).toUpperCase() + input.slice(1);
+}
+
+export function toSnakeCase(input: string): string {
+    return input
+        .replace(/([a-z])([A-Z])/g, "$1_$2")
+        .replace(/[\s\-]+/g, "_")
+        .toLowerCase();
+}
+
+export function snakeCaseToTitleCase(input: string): string {
+    return input
+        .split("_")
+        .map((word) => word.charAt(0).toUpperCase() + word.slice(1).toLowerCase())
+        .join(" ");
+}
+
+// Strips non-numeric characters from a string including spaces.
+export function sanitizeNum(input: string): string {
+    return input.replaceAll(/[^\d]+/g, "");
+}
+
+// Strips non-alphanumeric, non-space characters from a string.
+export function sanitizeAlphaNum(input: string): string {
+    return input.replaceAll(/[^a-zA-Z0-9 ]+/g, "");
+}
+
+// Strips non-alphanumeric characters from a string including spaces.
+export function sanitizeAlphaNumStrict(input: string): string {
+    return input.replaceAll(/[^a-zA-Z0-9]+/g, "");
+}
+
+export function numberToStringWithCommas(n: number):string {
+    var str = n.toString();
+
+    var negative = false;
+    if (str.startsWith("-")) {
+        negative = true;
+        str = str.slice(1);
+    }
+
+    var result = "";
+    for (let i=0; i < str.length; i++) {
+        if (i > 0 && (str.length - i)%3 === 0) {
+            result += ",";
+        }
+        result += str[i]
+    }
+
+    if (negative) {
+        result = "-" + result;
+    }
+
+    return result;
+}