![\"\"](\"1.png\")
\n ![\"\"](\"2.png\")
\n {{/content}}\n {{/embed}}\n\n {{#embed \"modal\" foo=\"bar\" name=user.fullName}}\n {{#content \"title\" mode=\"prepend\"}}Image 1 - {{/content}}\n {{#content \"body\"}}{{/content}}\n {{/embed}}\n {{/content}}\n\n{{/extend}}\n```\n\nThe `{{#embed}}` helper allows you to reason about your partials as you would class instantiation where the above is equivalent to the following psuedo code:\n\n```js\nclass Page extends Layout {\n body() {\n var gallery = new Gallery();\n\n gallery.replaceBody('\\n');\n\n var modal = new Modal({\n foo: 'bar',\n name: this.user.fullName\n });\n\n modal.prependTitle('Image 1 - ');\n modal.replaceBody('');\n\n return gallery.toString() + modal.toString();\n }\n}\n```\n\n### `{{#block [name]}}`\n\n- `name` `String` - Block identifier.\n\nDefines a named block, with optional default content. Blocks may have content appended, prepended, or replaced entirely when extending or embedding. You may append and prepend to the same block multiple times.\n\n```handlebars\n{{#block \"header\"}}\n Lorem ipsum...
\n{{/block}}\n\n{{#block \"footer\"}}\n© 1970
\n{{/block}}\n```\n\n### `{{#content [name] mode=\"(append|prepend|replace)\"}}`\n\n- `name` `String` - Identifier of the block to modify.\n- `mode` `String` _(Optional)_ - Means of providing block content. Default: `replace`.\n\nSets block content, optionally appending or prepending using the `mode` attribute.\n\nLayout:\n\n```handlebars\n\n ...\n \n {{#block \"header\"}}\nLorem ipsum.
\n {{/block}}\n\n {{#block \"footer\"}}\n© 1999
\n {{/block}}\n \n\n```\n\nPage:\n\n```handlebars\n{{#extend \"layout\"}}\n\n {{#content \"header\"}}\nDolor sit amet.
\n {{/content}}\n\n {{#content \"footer\" mode=\"prepend\"}}\nMIT License
\n {{/content}}\n\n{{/extend}}\n```\n\nOutput:\n\n```handlebars\n\n ...\n \nLorem ipsum.
\nDolor sit amet.
\n\nMIT License
\n© 1999
\n \n\n```\n\n### Conditional Blocks\n\nThere are times where you need to wrap a block with an element or use a different class depending on whether content has been provided for a block. For this purpose, the `content` helper may be called as a [subexpression](http://handlebarsjs.com/expressions.html#subexpressions) to check whether content has been provided for a block.\n\nFor example, you may wish to have an optional column in a grid layout:\n\n```handlebars\n{{!-- layout.hbs --}}\nLeft
\n {{/content}}\n\n{{/extend}}\n```\n\nResulting in:\n\n```html\nLeft
\nLeft
\n {{/content}}\n\n {{#content \"right\"}}\nRight
\n {{/content}}\n\n{{/extend}}\n```\n\nResulting in:\n\n```html\nLeft
\nRight
\n