[Home](./index.md) > [puppeteer](./puppeteer.md) > [JSCoverage](./puppeteer.jscoverage.md) > [(constructor)](./puppeteer.jscoverage._constructor_.md) ## JSCoverage.(constructor) Constructs a new instance of the `JSCoverage` class Signature: ```typescript constructor(client: CDPSession); ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | client | [CDPSession](./puppeteer.cdpsession.md) | |