append head doesn't work in Jade

问题

My layout.jade is following:

doctype html
html
    head
        title= title
        link(rel='stylesheet', href='/stylesheets/style.css')
        link(rel='stylesheet', href='/stylesheets/bootstrap.css')
        link(rel='stylesheet', href='/stylesheets/bootstrap-grid.css')
        link(rel='stylesheet', href='/stylesheets/bootstrap-reboot.css')
        script(src="/javascripts/core.js")
        script(src="/javascripts/jquery.js")
        script(src="/javascripts/jquery-slim.js")
        script(src="/javascripts/bootstrap.js")
    body
        block content

My place.jade is following:

extends layout

append head
    script(src="/javascripts/custom.js")
    ...

When I serve templete, I see

Which meand appending doesn't render at all.

Why?

回答1:

Append works only with block so the correct code of layout.jade is

doctype html
html
    head
    block scripts
        title= title
        link(rel='stylesheet', href='/stylesheets/style.css')
        link(rel='stylesheet', href='/stylesheets/bootstrap.css')
        link(rel='stylesheet', href='/stylesheets/bootstrap-grid.css')
        link(rel='stylesheet', href='/stylesheets/bootstrap-reboot.css')
        script(src="/javascripts/core.js")
        script(src="/javascripts/jquery.js")
        script(src="/javascripts/jquery-slim.js")
        script(src="/javascripts/bootstrap.js")
    body
        block content

and for place.jade will be

extends layout

append scripts
    script(src="/javascripts/custom.js")
    ...

来源：https://stackoverflow.com/questions/44586130/append-head-doesnt-work-in-jade