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@@ -0,0 +1,117 @@
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+
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+var a = 5;
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+var b, c;
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+
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+
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+
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+
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+c = b = (a * 5) / 2;
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+
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+
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+
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+
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+
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+function getAge(age, currentYear = new Date().getFullYear()) {
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+ try {
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+ age = Math.trunc(Number(age))
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+ if(!age || isNaN(age) || age > 200 || age < 0) {
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+ throw e
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+ } else {
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+ currentYear = currentYear - age
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+ return [currentYear, currentYear-1]
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+ }
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+ } catch(e) {
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+ return 0
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+ }
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+}
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+
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+let year = getAge(prompt("input your age",""))
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+if(year) {
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+ alert(`Looks like you've been born in ${year[0]} or ${year[1]}`)
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+} else {
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+ alert('whoops, looks like invalid input value has been given!')
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+}
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+
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+
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+
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+try {
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+ let grad = Number(prompt("Input temperature",""))
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+ let sys = prompt(`
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+ Type:
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+ F - to translate to Fahrenheit
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+ C - to translate to Celsius
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+ `)
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+ let res = getTemperature(grad, sys)
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+ if(res) {
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+ alert(`${grad}${sys.toLowerCase() === 'c'? '°F':'°C'} = ${res}${sys.toLowerCase() === 'c'? '°C':'°F'}`)
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+ } else {
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+ throw e;
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+ }
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+} catch(e) {
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+ alert('invalid input!')
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+}
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+
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+function getTemperature(value, system="c") {
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+ if(isNaN(Number(value))) return false
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+
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+ switch(system.toLowerCase()) {
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+ case 'f':
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+ return ((value * 9/5) + 32).toFixed(2)
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+ case 'c':
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+ return ((value - 32) * 5/9).toFixed(2)
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+ default:
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+ return false
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+ }
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+}
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+
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+
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+function flooredDivide(num1, num2) {
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+ console.log(num1 / num2)
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+ return Math.floor(num1 / num2)
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+}
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+
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+
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+function oddInformer() {
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+ let num = prompt("input a number:", "")
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+ if(isNaN(+num) || !num) {
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+ alert("not a number!!!")
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+ } else {
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+ if(num % 2 !== 0) {
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+ alert(`${num} is odd`)
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+ } else {
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+ alert(`${num} is even`)
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+ }
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+ }
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+}
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+oddInformer()
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+
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+
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+function greeting() {
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+ let name = prompt("Hey user, what's your name")
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+ alert(`Hello, ${name? name : 'Namless One...'}`)
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+}
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+greeting()
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+
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+
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+function lexis(string, word) {
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+ if(string.indexOf(word) > 0) {
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+ return true
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+ } else {
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+ return false
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+ }
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+}
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