Thomas G. Lopes
54 lines
1.3 KiB
JavaScript
Executable File
54 lines
1.3 KiB
JavaScript
Executable File
#!/usr/bin/env node
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import puppeteer from "puppeteer-core";
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const code = process.argv.slice(2).join(" ");
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if (!code) {
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console.log("Usage: browser-eval.js 'code'");
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console.log("\nExamples:");
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console.log(' browser-eval.js "document.title"');
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console.log(' browser-eval.js "document.querySelectorAll(\'a\').length"');
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process.exit(1);
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}
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const b = await Promise.race([
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puppeteer.connect({
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browserURL: "http://localhost:9222",
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defaultViewport: null,
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}),
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new Promise((_, reject) => setTimeout(() => reject(new Error("timeout")), 5000)),
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]).catch((e) => {
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console.error("✗ Could not connect to browser:", e.message);
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console.error(" Run: browser-start.js");
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process.exit(1);
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});
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const p = (await b.pages()).at(-1);
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if (!p) {
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console.error("✗ No active tab found");
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process.exit(1);
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}
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const result = await p.evaluate((c) => {
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const AsyncFunction = (async () => {}).constructor;
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return new AsyncFunction(`return (${c})`)();
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}, code);
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if (Array.isArray(result)) {
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for (let i = 0; i < result.length; i++) {
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if (i > 0) console.log("");
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for (const [key, value] of Object.entries(result[i])) {
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console.log(`${key}: ${value}`);
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}
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}
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} else if (typeof result === "object" && result !== null) {
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for (const [key, value] of Object.entries(result)) {
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console.log(`${key}: ${value}`);
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}
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} else {
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console.log(result);
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}
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await b.disconnect();
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