您好,登錄后才能下訂單哦!
這篇文章主要為大家展示了如何使用JavaScript獲取Django模板指定鍵值數(shù)據(jù),內(nèi)容簡(jiǎn)而易懂,希望大家可以學(xué)習(xí)一下,學(xué)習(xí)完之后肯定會(huì)有收獲的,下面讓小編帶大家一起來(lái)看看吧。
Django中利用js來(lái)操作數(shù)據(jù)的常規(guī)操作一般為點(diǎn)(.)操作符來(lái)獲取字典或列表的數(shù)據(jù),一般如{{data.0}},{{data.arg}}
但有時(shí)如果數(shù)據(jù)是嵌套類型的數(shù)據(jù)時(shí),直接獲取某個(gè)值就變得困難了,比如下面的格式要獲取
correct中qxl的值
startArgsSet={"correct":{"qxl":0,"kkx":0},"reliable":{"qxl":0,"kkx":0},"security":{"qxl":0,"kkx":0},"understand":{"qxl":0,"kkx":0},"entropy":{"qxl":0,"kkx":0}, "mature":{"qxl":0,"kkx":0},"active":{"qxl":0,"kkx":0},"service":{"qxl":0,"kkx":0},"file":{"qxl":0,"kkx":0}, "tech":{"qxl":0,"kkx":0},"property":{"qxl":0,"kkx":0},"organize":{"qxl":0,"kkx":0},"develop":{"qxl":0,"kkx":0}, "source":{"qxl":0,"kkx":0},"update":{"qxl":0,"kkx":0},"fix":{"qxl":0,"kkx":0}, "quality":{"qxl":0,"kkx":0},"meanNum":{"qxl":0,"kkx":0},"variance":{"qxl":0,"kkx":0} }
這時(shí)候如果改變數(shù)據(jù)格式為列表中的無(wú)嵌套字典格式比較麻煩,可以自定義過(guò)濾器來(lái)獲取數(shù)據(jù),
from django.template.defaulttags import register @register.filter def getArgQxlValue(dictionary,arg): return dictionary[arg]['qxl'] @register.filter def getArgKkxValue(dictionary,arg): return dictionary[arg]['kkx'] @register.filter def getArgName(dictionary,arg): return dictionary[arg]['name']
在模板中就可以以這樣寫
<!-- the second important page of the project--> {% load staticfiles %} <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>超標(biāo)信息</title> <script src="{% static 'js/a-mynewjs.js' %}"></script> </head> <body> {{ guestSetArgs|safe }}<br><br><br> {{ warningdata|safe }}<br><br> <script> {% for i in guestSetArgs %} {% for j in warningdata %} if("{{i}}"=="{{j}}") { if(Number({{warningdata|getArgQxlValue:j}})>Number({{guestSetArgs|getArgQxlValue:i}})) var setArgStr="{{warningdata|getArgName:i}} 超出閥值 閥值:{{guestSetArgs|getArgQxlValue:j}} 檢測(cè)值:{{warningdata|getArgQxlValue:j}}<br>" document.write(setArgStr); } {% endfor %} {% endfor %} </script> </body> </html>
形如{{warningdata|getArgQxlValue:j}},就可以獲取到里面的值了
稍做美化
以上就是關(guān)于如何使用JavaScript獲取Django模板指定鍵值數(shù)據(jù)的內(nèi)容,如果你們有學(xué)習(xí)到知識(shí)或者技能,可以把它分享出去讓更多的人看到。
免責(zé)聲明:本站發(fā)布的內(nèi)容(圖片、視頻和文字)以原創(chuàng)、轉(zhuǎn)載和分享為主,文章觀點(diǎn)不代表本網(wǎng)站立場(chǎng),如果涉及侵權(quán)請(qǐng)聯(lián)系站長(zhǎng)郵箱:is@yisu.com進(jìn)行舉報(bào),并提供相關(guān)證據(jù),一經(jīng)查實(shí),將立刻刪除涉嫌侵權(quán)內(nèi)容。