# Font: Font Scaling Ratio

The font module provides an interface for applications to obtain font scaling ratio.

Developers can determine whether this interfaces work in the EdgerOS mobile App environment through the following code:

edger.env().then(data => {
  if (data.env === 'edgerapp') {
    // We work in EdgerOS mobile App environment.
  }
}).catch(error => {
  console.error(error);
});

# Functions

# edger.font.getFontScale()

Obtain font scaling ratios.

The font scaling ratio can be set in the mobile system, ranging from 0.9 to 1.2, Default: 1. You can also obtain it through the CSS variable --edger-font-scale.

• Returns: {Promise<{scale: number}>} Promise object.

# Example

edger.font.getFontScale().then((res) => {
  console.log("font scale: " + res.scale);
}).catch((error) => {
  console.error(error);
});

# async / await

async function getFontScale() {
  try {
    const { scale } = await edger.font.getFontScale();
    console.log(`font scale: ${scale}`);
  } catch (error) {
    console.error(error);
  }
}