javascript - Test lastIndex of two string -


इस फ़ंक्शन को ग्रहण करें: 

  फ़ंक्शन renameDoc () {var newFilename = prompt ("name यह दस्तावेज़: ", फ़ाइल नाम); if (! newFilename == नल) {if (newFilename === "") {changeFilename (); // "untitled.txt"} और {changeFilename (newFilename.lastIndexOf (".txt") == -1; नयाफ़िलनम + ".txt": newFilename); } वापस सच; }}   
 इस फ़ंक्शन का परीक्षण अगर  newFilename  में  .txt  है और यह पूरी तरह से कार्य करता है।  
 लेकिन यह देखना है कि अगर  newFilename  है  .txt।  या  .md   
 मैं यह कोशिश कर रहा हूं  
  फ़ंक्शन renameDoc () {var newFilename = prompt ("इस दस्तावेज़ को नाम दें:", फ़ाइल नाम); if (! newFilename == नल) {if (newFilename === "") {changeFilename (); // "untitled.txt"} और {changeFilename ((newfilename.lastIndexOf (".txt") और amp; amp; amp; & amp; amp; नएफ़ाइलनाम .lastइंडएक्स ("। एमडी")) == -1? नयाफ़ाइलनाम + ".txt": newFilename) ; } वापस सच; यह पूरी तरह से काम नहीं कर रहा है।  
 क्या आप इस पर मेरी मदद कर सकते हैं।   
 
 
 आप इसका उपयोग कर सकते हैं:  
  /। (Md | txt) $ /। Test (newFilename)   
 यह परीक्षण करने के लिए कि ".md" या ".txt" या ".txt" के साथ किसी फ़ाइल का नाम समाप्त हो गया है, तो आप यह कर सकते हैं:  
  changeFilename (/\.(md|txt)$/.test(newFilename) newFilename: newFilename + ".txt");?

Comments

Post a Comment

Popular posts from this blog

sonata admin - how to add ManyToOne property field in configureListfield in sonataAdmin -

I have a phone unit unit that contains many properties for many unit entity classes I An exception is given during the rendering of a template ("You must define a associated_property option or Create a \ __counter __ \ Examens \ ExamensBundle \ unit \ Grade Proxy :: __ toString service examens.examens.admin.fonctionnaire from the field option idGrade to the method is in SonataDoctrineORMAdminBundle "): CRUD: Line_ on line_list_orm_many_to_one.html.tw Fontionnaire.php class: & lt ;? Php namespace exams \ ExamensBundle \ Entity; Use the theory / ORM \ mapping as an ORM; / ** * PhoneNationLayer * / Class Fictionalair {//...//// ** * @VARAEfimens \ Examinations Bundle \ Unit \ Grade * / Private $ IDGed; //...//} FonctionnaireAdmin.php: & lt ;? Php namespace exams ExamensBundle \ Admin; Use Sonata \ AdminBundle \ Admin \ Admin; Sonata \ AdminBundle \ Datagrid \ ListMapper; Sonata \ AdminBundle \ Datagrid \ DatagridMapper; Sonata \ AdminBundle \ Validat...
Read more

wpf - ControlTemplate with changes for every class -

I have the following ControlTemplate that is the same for all my custom controls. & amp; the lift; ControlTemplate x: key = "PssFunctionControlBaseHorizontal" TargetType = "Local: PssFunctionControlBase" & gt; & Lt; Grid & gt; & Lt; Threshold Threshold = "1" & gt; & Lt; Content Control X: Name = "Inner Content" Template = "{Static Resources Inner Contentbase Horizontal}" /> & Lt; / Border & gt; & Lt; Control x: name = "PART_ResizeDecorator" visibility = "short" template = "{static resource resize deccurratematet}" /> & Lt; / Grid & gt; & Lt; ControlTemplate.Triggers & gt; & Lt; Data Trigger Value = "True" Binding = "{Binding Editing Moded, Relative Soros = {ResolveSource Search Engineer, Instant Type = {x: Type Local: PssViewLayoutControl}}}" & gt; & Lt; Setter target name = "PART_ResizeDecorator" ...
Read more

python - how we can use ajax() in views.py in django? -

I have a little code here. Could you please tell me what this code really does? please. Here in the AJAX call: $ .ajax ({url: "{% url} upload_document '%}", type: "POST", data : {Csrfmiddletoken: document.getElementsByName ('csrfmiddletoken') [0] Price, Title: document.getElementById ('title'). Value, // document: document: document.getElementById ('document'),}, datatype: "Jason", success: function (feedback) {if (feedback == "true") {// success} other {// attachment errors}}}); How AJAX works in the Django and how we can see the AJAX request. Here is the idea of ​​my thoughts def upload_document (requested): Print request. POTT print request FILES if request.is_ajax (): If request.method == 'POST': form = UploadForm (request.POST, request.FILES, user = request.user) if form.is_valid (): Form.save () return HTTPPCS (SimpleJason Dumps ('True'), Mime Type = 'App / Jason') Other:...
Read more