函数原型：
wp_register_script( string $handle, string|false $src, string[] $deps = array(), string|bool|null $ver = false, bool $in_footer = false ): bool注册 javascript 脚本。
WordPress 为了解决 javascript 依赖和版本更新的问题，提供了一组 API。
如果已使用wp_register_script（）预注册的脚本被列为另一个已入队脚本的依赖项，则无需使用wp_enque_script）手动入队。WordPress将自动包含已注册的脚本，然后再包含将已注册脚本的句柄列为依赖项的入队脚本。
如果已注册脚本的句柄列在使用wp_enque_script（）入队的另一个脚本的$deps依赖项数组中，则该脚本将在加载入队脚本之前自动加载。这大大简化了确保脚本具有所需的所有依赖项的过程。
因此，register函数的主要目的是，如果将相同的脚本或样式放入多个代码段中，则无需重复代码，从而简化代码。
如果要在站点前端调用该函数，则应使用wp_enque_scripts或init操作挂钩来调用该函数。要在管理屏幕上调用它，请使用admin_enque_scripts操作挂钩。对于登录屏幕，请使用login_enqueue_scripts操作挂钩。在操作挂钩之外调用它通常会导致意外的结果，应该避免。
如果尝试使用不同的参数注册或排队已注册的句柄，则会忽略新参数。相反，使用wp_deregister_script（）并使用新参数再次注册脚本。
参数说明：
$handle，脚本的名称。应该是唯一的。
$src，脚本的完整URL，或相对于WordPress根目录的脚本路径。若source设置为false，那个么script就是它所依赖的其他脚本的别名。
$deps，已注册脚本的数组处理此脚本所依赖的。
$ver，指定脚本版本号的字符串（如果有），它会作为查询字符串添加到URL中，用于破坏缓存。如果version设置为false，则会自动添加与当前安装的WordPress版本相等的版本号。如果设置为null，则不添加任何版本。
$in_footer，是否在</body>之前而不是在<head>中对脚本进行排队。
在 WordPress 中已注册的 javascript：
utils /wp-includes/js/utils.js
common /wp-admin/js/common.js
sack /wp-includes/js/tw-sack.js
quicktags /wp-includes/js/quicktags.js
colorpicker /wp-includes/js/colorpicker.js
editor /wp-admin/js/editor.js
wp-fullscreen /wp-admin/js/wp-fullscreen.js
wp-ajax-response /wp-includes/js/wp-ajax-response.js
wp-pointer /wp-includes/js/wp-pointer.js
autosave /wp-includes/js/autosave.js
heartbeat /wp-includes/js/heartbeat.js
wp-auth-check /wp-includes/js/wp-auth-check.js
wp-lists /wp-includes/js/wp-lists.js
prototype external: //ajax.googleapis.com/ajax/libs/prototype/1.7.1.0/prototype.js
scriptaculous-root external: //ajax.googleapis.com/ajax/libs/prototype/1.7.1.0/prototype.js
scriptaculous-builder external: //ajax.googleapis.com/ajax/libs/prototype/1.7.1.0/builder.js
scriptaculous-dragdrop external: //ajax.googleapis.com/ajax/libs/prototype/1.7.1.0/dragdrop.js
scriptaculous-effects external: //ajax.googleapis.com/ajax/libs/prototype/1.7.1.0/effects.js
scriptaculous-slider external: //ajax.googleapis.com/ajax/libs/prototype/1.7.1.0/slider.js
scriptaculous-sound external: //ajax.googleapis.com/ajax/libs/prototype/1.7.1.0/sound.js
scriptaculous-controls external: //ajax.googleapis.com/ajax/libs/prototype/1.7.1.0/controls.js
scriptaculous scriptaculous-dragdrop, scriptaculous-slider, scriptaculous-controls
cropper /wp-includes/js/crop/cropper.js
jquery (v1.10.2 as of WP 3.8) jquery-core, jquery-migrate
jquery-core /wp-includes/js/jquery/jquery.js
jquery-migrate /wp-includes/js/jquery/jquery-migrate.js (v1.10.2 as of WP 3.8)
jquery-ui-core /wp-includes/js/jquery/ui/jquery.ui.core.min.js
jquery-effects-core /wp-includes/js/jquery/ui/jquery.ui.effect.min.js
jquery-effects-blind /wp-includes/js/jquery/ui/jquery.ui.effect-blind.min.js
jquery-effects-bounce /wp-includes/js/jquery/ui/jquery.ui.effect-bounce.min.js
jquery-effects-clip /wp-includes/js/jquery/ui/jquery.ui.effect-clip.min.js
jquery-effects-drop /wp-includes/js/jquery/ui/jquery.ui.effect-drop.min.js
jquery-effects-explode /wp-includes/js/jquery/ui/jquery.ui.effect-explode.min.js
jquery-effects-fade /wp-includes/js/jquery/ui/jquery.ui.effect-fade.min.js
jquery-effects-fold /wp-includes/js/jquery/ui/jquery.ui.effect-fold.min.js
jquery-effects-highlight /wp-includes/js/jquery/ui/jquery.ui.effect-highlight.min.js
jquery-effects-pulsate /wp-includes/js/jquery/ui/jquery.ui.effect-pulsate.min.js
jquery-effects-scale /wp-includes/js/jquery/ui/jquery.ui.effect-scale.min.js
jquery-effects-shake /wp-includes/js/jquery/ui/jquery.ui.effect-shake.min.js
jquery-effects-slide /wp-includes/js/jquery/ui/jquery.ui.effect-slide.min.js
jquery-effects-transfer /wp-includes/js/jquery/ui/jquery.ui.effect-transfer.min.js
jquery-ui-accordion /wp-includes/js/jquery/ui/jquery.ui.accordion.min.js
jquery-ui-autocomplete /wp-includes/js/jquery/ui/jquery.ui.autocomplete.min.js
jquery-ui-button /wp-includes/js/jquery/ui/jquery.ui.button.min.js
jquery-ui-datepicker /wp-includes/js/jquery/ui/jquery.ui.datepicker.min.js
jquery-ui-dialog /wp-includes/js/jquery/ui/jquery.ui.dialog.min.js
jquery-ui-draggable /wp-includes/js/jquery/ui/jquery.ui.draggable.min.js
jquery-ui-droppable /wp-includes/js/jquery/ui/jquery.ui.droppable.min.js
jquery-ui-menu /wp-includes/js/jquery/ui/jquery.ui.menu.min.js
jquery-ui-mouse /wp-includes/js/jquery/ui/jquery.ui.mouse.min.js
jquery-ui-position /wp-includes/js/jquery/ui/jquery.ui.position.min.js
jquery-ui-progressbar /wp-includes/js/jquery/ui/jquery.ui.progressbar.min.js
jquery-ui-resizable /wp-includes/js/jquery/ui/jquery.ui.resizable.min.js
jquery-ui-selectable /wp-includes/js/jquery/ui/jquery.ui.selectable.min.js
jquery-ui-slider /wp-includes/js/jquery/ui/jquery.ui.slider.min.js
jquery-ui-sortable /wp-includes/js/jquery/ui/jquery.ui.sortable.min.js
jquery-ui-spinner /wp-includes/js/jquery/ui/jquery.ui.spinner.min.js
jquery-ui-tabs /wp-includes/js/jquery/ui/jquery.ui.tabs.min.js
jquery-ui-tooltip /wp-includes/js/jquery/ui/jquery.ui.tooltip.min.js
jquery-ui-widget /wp-includes/js/jquery/ui/jquery.ui.widget.min.js
jquery-form /wp-includes/js/jquery/jquery.form.js
jquery-color /wp-includes/js/jquery/jquery.color.min.js
suggest /wp-includes/js/jquery/suggest.js
schedule /wp-includes/js/jquery/jquery.schedule.js
jquery-query /wp-includes/js/jquery/jquery.query.js
jquery-serialize-object /wp-includes/js/jquery/jquery.serialize-object.js
jquery-hotkeys /wp-includes/js/jquery/jquery.hotkeys.js
jquery-table-hotkeys /wp-includes/js/jquery/jquery.table-hotkeys.js
jquery-touch-punch /wp-includes/js/jquery/jquery.ui.touch-punch.js
jquery-masonry /wp-includes/js/jquery/jquery.masonry.min.js
thickbox /wp-includes/js/thickbox/thickbox.js
jcrop /wp-includes/js/jcrop/jquery.Jcrop.js
swfobject /wp-includes/js/swfobject.js
plupload /wp-includes/js/plupload/plupload.js
plupload-html5 wp-includes/js/plupload/plupload.html5.js
plupload-flash /wp-includes/js/plupload/plupload.flash.js“
plupload-silverlight /wp-includes/js/plupload/plupload.silverlight.js
plupload-html4 /wp-includes/js/plupload/plupload.html4.js
plupload-all plupload, plupload-html5, plupload-flash, plupload-silverlight, plupload-html4
plupload-handlers /wp-includes/js/plupload/handlers.js
wp-plupload /wp-includes/js/plupload/wp-plupload.js
swfupload /wp-includes/js/swfupload/swfupload.js
swfupload-swfobject /wp-includes/js/swfupload/plugins/swfupload.swfobject.js
swfupload-queue /wp-includes/js/swfupload/plugins/swfupload.queue.js
swfupload-speed /wp-includes/js/swfupload/plugins/swfupload.speed.js
swfupload-all /wp-includes/js/swfupload/swfupload-all.js
swfupload-handlers /wp-includes/js/swfupload/handlers.js
comment-reply /wp-includes/js/comment-reply.js
json2 /wp-includes/js/json2.js
underscore /wp-includes/js/underscore.min.js
backbone /wp-includes/js/backbone.min.js
wp-util /wp-includes/js/wp-util.js
wp-backbone /wp-includes/js/wp-backbone.js
revisions /wp-admin/js/revisions.js
imgareaselect /wp-includes/js/imgareaselect/jquery.imgareaselect.js
mediaelement /wp-includes/js/mediaelement/mediaelement-and-player.min.js
wp-mediaelement /wp-includes/js/mediaelement/wp-mediaelement.js
zxcvbn-async /wp-includes/js/zxcvbn-async.js
password-strength-meter /wp-admin/js/password-strength-meter.js
user-profile /wp-admin/js/user-profile.js
user-suggest /wp-admin/js/user-suggest.js
admin-bar /wp-includes/js/admin-bar.js
wplink /wp-includes/js/wplink.js
wpdialogs /wp-includes/js/tinymce/plugins/wpdialogs/js/wpdialog.js
wpdialogs-popup /wp-includes/js/tinymce/plugins/wpdialogs/js/popup.js
word-count /wp-admin/js/word-count.js
media-upload /wp-admin/js/media-upload.js
hoverIntent /wp-includes/js/hoverIntent.js
customize-base /wp-includes/js/customize-base.js
customize-loader
customize-preview
customize-controls
accordion
shortcode
media-models
media-views
media-editor
mce-view
admin-tags
admin-comments
xfn
postbox
post
link
comment
admin-gallery
admin-widgets
theme
theme-install
inline-edit-post
inline-edit-tax
plugin-install
farbtastic
iris
wp-color-picker
dashboard
list-revisions
media
image-edit
set-post-thumbnail
nav-menu
custom-header
custom-background
media-gallery
svg-painter
函数源码：
function wp_register_script( $handle, $src, $deps = array(), $ver = false, $in_footer = false ) {
_wp_scripts_maybe_doing_it_wrong( __FUNCTION__, $handle );
$wp_scripts = wp_scripts();
$registered = $wp_scripts->add( $handle, $src, $deps, $ver );
if ( $in_footer ) {
$wp_scripts->add_data( $handle, 'group', 1 );
}
return $registered;
}
使用举例：
wp_register_script( 'someScript-js', 'https://domain.com/someScript.js' , '', '', true );-
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