javascript - JS is refusing to loop a function -
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- calling functions settimeout() 5 answers
i having problem countdown. have made countdown js change html refuses loop. have setinterval , have tried for, while , loops none work. appreciate help.
html:
<body> <center> <h1> input date , time want countdown to!</h1> <form> second:<input id="seconds" type="number"><br> minute:<input id="minutes" type="number"><br> hour:<input id="hours" type="number"><br> day:<input id="days" type="number"><br> month:<input id="months" type="text"><br> year:<input id="years" type="number"><br> </form> <button onclick="start()">calculate!</button> <h1 id="yearsres"></h1>years<br> <h1 id="monthsres"></h1>months<br> <h1 id="daysres"></h1>days<br> <h1 id="hoursres"></h1>hours<br> <h1 id="minutesres"></h1>minutes<br> <h1 id="secondsres"></h1>seconds<br> </center> </body> js:
function start() { var myvar = setinterval(test(), 1000) } function test() { console.log("hi"); } function calculateseconds(sec) { var year = document.getelementbyid("years").value; var month = document.getelementbyid("months").value; var day = document.getelementbyid("days").value; var hour = document.getelementbyid("hours").value; var minute = document.getelementbyid("minutes").value; var second = document.getelementbyid("seconds").value; var countdownto = new date(month + " " + day + "," + " " + year + " " + hour + ":" + minute + ":" + second); var epochto = countdownto.gettime()/1000.0; var current = new date(); var epochcurrent = current.gettime()/1000.0; var epochcountdown = epochto - epochcurrent; var t = parseint(epochcountdown); var years = 0; var months = 0; var days = 0; var = 1; if(t>31556926){ years = parseint(t/31556926); t = t-(years*31556926); } if(t>2629743){ months = parseint(t/2629743); t = t-(months*2629743); } if(t>86400){ days = parseint(t/86400); t = t-(days*86400); } var hours = parseint(t/3600); t = t-(hours*3600); var minutes = parseint(t/60); t = t-(minutes*60); document.getelementbyid("yearsres").innerhtml = years; document.getelementbyid("monthsres").innerhtml = months; document.getelementbyid("daysres").innerhtml = days; document.getelementbyid("hoursres").innerhtml = hours; document.getelementbyid("minutesres").innerhtml = minutes; document.getelementbyid("secondsres").innerhtml = t; }
by adding () test function call it. setinterval method takes reference function (name of function) , interval in milliseconds. can used this:
function start() { var myvar = setinterval(test, 1000); } or this:
function start() { var myvar = setinterval(function() { test(); }, 1000); } also if need pass parameters function can this:
function start() { var myvar = setinterval(test, 1000, "first param", "second param"); }
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