parse बनाम safeParse

import { z } from "zod";
const schema = z.string();
// schema.parse(x) throws on failure
// schema.safeParse(x) returns { success, ... }

import { z } from "zod";
const schema = z.number();
const ok = schema.parse(42); // 42
// schema.parse("nope"); // throws ZodError

import { z } from "zod";
const schema = z.number();
try {
  schema.parse("nope");
} catch (err) {
  if (err instanceof z.ZodError) {
    console.log("Invalid:", err.issues.length);
  }
}

import { z } from "zod";
const schema = z.number();
const result = schema.safeParse("nope");
// result is { success: false, error: ZodError }

import { z } from "zod";
const schema = z.object({ id: z.number() });
const result = schema.safeParse({ id: 1 });
if (result.success) {
  console.log(result.data.id); // typed
} else {
  console.log(result.error.issues);
}

import { z } from "zod";
const configSchema = z.object({ port: z.number() });
const config = configSchema.parse({ port: 8080 });
// Fail fast if config is wrong.

import { z } from "zod";
const formSchema = z.object({ email: z.string() });
const r = formSchema.safeParse({ email: 123 });
if (!r.success) {
  // Show a friendly validation message
}

import { z } from "zod";
const schema = z.object({ age: z.number() });
const r = schema.safeParse({ age: "x" });
if (!r.success) {
  for (const issue of r.error.issues) {
    console.log(issue.path, issue.message);
  }
}

import { z } from "zod";
const userSchema = z.object({ name: z.string() });
type User = z.infer<typeof userSchema>;
const u: User = userSchema.parse({ name: "Ada" });
console.log(u.name);

import { z } from "zod";
const schema = z.string();
// Critical: schema.parse(value)
// User-facing: schema.safeParse(value)

import { z } from "zod";
function validate<T extends z.ZodType>(schema: T, value: unknown) {
  const r = schema.safeParse(value);
  return r.success ? { ok: true, data: r.data } : { ok: false, error: r.error };
}
// Reusable, no throwing.

import { z } from "zod";
const schema = z.object({ id: z.number() });
const r = schema.safeParse({ id: 1 });
if (r.success) console.log(r.data.id);