javascript - Setting Timer For Online Quiz -



javascript - Setting Timer For Online Quiz -

i'm trying build online quiz, i've done of - questions selected randomly database 1 @ time, user enters/selects answer, there response, random question pops - i've done that, tricky aspect how attach timer(javascript, guess) instance question pops , when response entered...any general guideline on how this?

thanks.

i give approach on how go creating timer of sorts every question. prefer using javascript timer employing setinterval() method because it's pretty easy implement. i've given sample snippet starts counting 0 every second. can modify countdown timer suit needs. relevant documentation on timing events in js.

class="snippet-code-js lang-js prettyprint-override">var myvar = setinterval(function() { mytimer() }, 1000); var d = 0; function mytimer() { document.getelementbyid("demo").innerhtml = d++; } class="snippet-code-html lang-html prettyprint-override"><!doctype html> <html> <body> <p>a script on page starts timer:</p> <p id="demo"></p> </body> </html>

a thing maintain in mind while developing javascript timer business relationship browser refreshes. want maintain tabs on 'state' of timer if user accidently hits refresh or loses net connectivity. if using javascript, might want seek local storage built browser storing value. @ point in time have this:

// store localstorage.setitem("lasttime", d); //in context of code snippet // retrieve var lasttime = localstorage.getitem("lasttime");

so can maintain track of accidental glitches while attempting question , correctly business relationship total time question. can save these times per question database or create request php script necessary compiling , reporting of whole quiz 1 time again largely depends on implementation.

if want implement whole thing in php, might want check out using cookies or session variables storing time elapsed per question specific user.

i hope gets started in right direction.

javascript php timer

Comments

Post a Comment

Popular posts from this blog

xslt - DocBook 5 to PDF transform failing with error: "fo:flow" is missing child elements. Required content model: marker* -

xslt - DocBook 5 to PDF transform failing with error: "fo:flow" is missing child elements. Required content model: marker* - i've inherited doc publishing process takes docbook , builds html , pdf output, using apache fop both. project had been started, never completed. lots of tweaking, i've able of doc sets build (20+), except handful, , fail severe code 1 of these 2 conditions: "fo:flow" missing kid elements. required content model: marker* "fo:block" not valid kid of "fo:root" the xml output comes out of docbook , docbook-fop checks out well-formed. the fop error in 1 book, "endecagloss", example, points end of string: <fo:flow flow-name="xsl-region-body" start-indent="4pc" end-indent="0pt"/> here’s log output in case: [java] severe: javax.xml.transform.transformerexception: file:/scratch/publishing/hudson/jobs/build-main-endeca-documentation/workspace/serverdoc/w...
Read more

mediawiki - How do I insert tables inside infoboxes on Wikia pages? -

mediawiki - How do I insert tables inside infoboxes on Wikia pages? - i want insert tables in infoboxes. example, have proteinbox i've developed using infobox template (http://health-and-medicine.wikia.com/wiki/template:proteinbox), , fasta field big fit comfortably in proteinbox. hence collapsible table within box. this tried: {{infobox | row 1 = {| class = "mw-collapsible mw-collapsed wikitable" |- | <!-- table content --> |} }} your problem is, putting nested table within template. pipe characters ( | ) in table syntax collides pipe usage in templates. the commonly used hack around create template called template:! , containing pipe character, , utilize when need set tables, parser functions or other stuff using pipe characters, within templates. table (with every | replaced {{!}} ): {{{!}} {{!}}- {{!}} a1 {{!}} b1 {{!}}- {{!}} a2 {{!}} b2 {{!}}} ...the equivalent of {| |- | a1 | b1 |- | a2 | b2 |} furthermore, hav...
Read more

Local Service User Logged into Windows -

Local Service User Logged into Windows - i created windows service tracks app server user connected through load balancer. it retrieves user logged windows on machine, cross references active directory (ad) business relationship homecoming first name, lastly name , e-mail (for notification through website created project) there 1 scheme on network users remote system, vista system, reason returning values "local service" logged machine, it's weird , security guys impossible "local service" business relationship logged windows. here how user logged windows managementscope ms = new managementscope("\\\\.\\root\\cimv2"); objectquery query = new objectquery("select * win32_computersystem"); managementobjectsearcher searcher = new managementobjectsearcher(ms, query); foreach (managementobject mo in searcher.get()) { _username = mo["username"].tostring(); } // remove domain part username string[] usernameparts = _...
Read more