웹찢남

Event – onclick=”nightDayHandler(this);”,onchange,onkeykown Datatype - number String – x.length / x.toUpperCase() / x.indexOf(y) / x.trim() / x.replace(‘a’,’b’) Function nightDayHandler(self){ Var target= Document.querySelector(‘body’). Target.style.backgroundColor=’white’; If(target.dataset.mode===’day’){ self.value=’day’; }else{ self.value=’night’;} Var links=document.querySelectorAll(‘a’); --..