Function createDangerousStringForStyles

code/composition/public/app.js:15196–15215

* This creates a string that is expected to be equivalent to the style * attribute generated by server-side rendering. It by-passes warnings and * security checks so it's not safe to use this value for anything other than * comparison. It is only used in DEV for SSR validation.

(styles)

 * comparison. It is only used in DEV for SSR validation.
 */
function createDangerousStringForStyles(styles) {
  {
    var serialized = '';
    var delimiter = '';
    for (var styleName in styles) {
      if (!styles.hasOwnProperty(styleName)) {
        continue;
      }
      var styleValue = styles[styleName];
      if (styleValue != null) {
        var isCustomProperty = styleName.indexOf('--') === 0;
        serialized += delimiter + hyphenateStyleName(styleName) + ':';
        serialized += dangerousStyleValue(styleName, styleValue, isCustomProperty);

        delimiter = ';';
      }
    }
    return serialized || null;
  }
}

/**
 * Sets the value for multiple styles on a node.  If a value is specified as