Load external or inline scripts in Playwright
Playwright offers a couple of ways to add scripts to the page(s) you are working with.
- Load external script in the head
- Add an inline script
- Load a script from node_modules or other path
Examples of the different ways to add and use a script in Playwright:
External script
await page.addScriptTag({ url: 'https://cdn.jsdelivr.net/gh/cferdinandi/smooth-scroll/dist/smooth-scroll.polyfills.min.js' });Inline script
function functionToInject (){
return 1+1;
}
function otherFunctionToInject(input){
return 6
}
await page.addScriptTag({ content: `${functionToInject} ${otherFunctionToInject}`});
var data = await page.evaluate(function(){
console.log('Running inside a browser')
return functionToInject() + otherFunctionToInject();
});
console.log(data);Path
with fake data
console.log(`Current directory: ${process.cwd()}`);
// Get current working directory
await page.addScriptTag({path: 'public\\js\\build\\report_bundle.js'});Passing values with page.evaluate
Not tested. Found it in Youtube video.
await page.goto('https://google.com')
const pizza = 'Hey Pizza'
await page.evaluate((pizza) => {
console.log('Pizza here:', pizza)
}, pizza);