JavaScriptPrograms/timeadder.js at main · Akash-M1/JavaScriptPrograms · GitHub

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constisInteger=(value)=>!isNaN(value)&&value>=0;

constvalidLabels=["seconds","minutes","hours","days","second","minute","hour","day"];
constisLabelInList=(label)=>validLabels.indexOf(label)!==-1;

constisValidLabel=(value,label)=>{
switch(label){
case"second":
case"minute":
case"hour":
case"day":
return(value===1) ? true : false;
case"seconds":
case"minutes":
case"hours":
case"days":
return(value===1) ? false : true;
default:
console.log("Label not valid.");
returnfalse;
}
}

constminuteSeconds=60;
consthourSeconds=minuteSeconds*60;
constdaySeconds=hourSeconds*24;

constconvertToSeconds=(value,label)=>{
switch(label){
case"second":
case"seconds":
returnvalue;
case"minute":
case"minutes":
returnvalue*minuteSeconds;
case"hour":
case"hours":
returnvalue*hourSeconds;
case"day":
case"days":
returnvalue*daySeconds;
default:
console.log("Can't convert to seconds.");
returnfalse;
}
}

constconvertToLarger=(seconds)=>{
if(seconds%daySeconds===0){
constdays=seconds/daySeconds;
return(days===1) ? [days,'day'] : [days,'days'];
}elseif(seconds%hourSeconds===0){
consthours=seconds/hourSeconds;
return(hours===1) ? [hours,'hour'] : [hours,'hours'];
}elseif(seconds%minuteSeconds===0){
constminutes=seconds/minuteSeconds;
return(minutes===1) ? [minutes,'minute'] : [minutes,'minutes'];
}else{
return(seconds===1) ? [seconds,'second'] : [seconds,'seconds'];
}
}

consttimeAdder=(value1,label1,value2,label2)=>{
// check values
if(!isInteger(value1)){
returnfalse;
}

if(!isInteger(value2)){
returnfalse;
}

// check labels
if(!isLabelInList(label1)){
returnfalse;
}

if(!isLabelInList(label2)){
returnfalse;
}

// check values and labels
if(!isValidLabel(value1,label1)){
returnfalse;
}

if(!isValidLabel(value2,label2)){
returnfalse;
}

// convert values to seconds
constseconds1=convertToSeconds(value1,label1);
constseconds2=convertToSeconds(value2,label2);

// add seconds
constresult=seconds1+seconds2;
returnconvertToLarger(result);
}