From 90ed8ef4dfd2965e1a468670168c6e05ada297a1 Mon Sep 17 00:00:00 2001
From: "belaid.daliomar@gmail.com"
 <111222029+belaid-dali@users.noreply.github.com>
Date: Wed, 23 Aug 2023 14:53:34 +0100
Subject: [PATCH] I have completed the day 03,

---
 .../03_day_starter/scripts/main.js            | 281 +++++++++++++++++-
 1 file changed, 280 insertions(+), 1 deletion(-)

diff --git a/03_Day_Booleans_operators_date/03_day_starter/scripts/main.js b/03_Day_Booleans_operators_date/03_day_starter/scripts/main.js
index 7762908..f5952f0 100644
--- a/03_Day_Booleans_operators_date/03_day_starter/scripts/main.js
+++ b/03_Day_Booleans_operators_date/03_day_starter/scripts/main.js
@@ -1 +1,280 @@
-// this is your main.js script
\ No newline at end of file
+// this is your main.js script
+
+//exercice level 1
+//ex 01
+let firstName = 'Belaid';
+let lastName = 'DALI OMAR';
+let country = 'Algeria';
+let city = 'Tizi Ouzou';
+let age = 30;
+let isMarried = false;
+let year = 1993;
+
+console.log(typeof(firstName)); //string
+
+console.log(typeof(lastName)); //string
+
+console.log(typeof(country)); //string
+
+console.log(typeof(city)); //string
+
+console.log(typeof(age)); //number
+
+console.log(typeof(isMarried)); //boolean
+
+console.log(typeof(year)); //number
+
+//exo 02
+console.log('10' == 10); //true
+
+//exo 03
+let l = parseInt('9.8');
+console.log(a == 10); //False
+
+//exo 04
+//Truthy values:
+
+let truthyValue = 42;
+let truthyString = "Hello, world!";
+let truthyArray = [1, 2, 3];
+
+// Falsy values:
+
+let falsyValue = 0;
+let falsyString = "";
+let falsyNull = null;
+
+//exo 05
+console.log(4>3); //true
+console.log(4>=3); //true
+console.log(4<3); //false
+console.log(4 == 4); //true
+console.log(4 === 4); //true
+console.log(4 != 4); //False
+console.log(4 !== 4); //false
+console.log(4 != '4'); //false
+console.log(4 == '4'); //true
+console.log(4 === '4'); //false
+
+const pythonLength = "python".length;
+const jargonLength = "jargon".length;
+
+const isFalsyComparison = pythonLength === jargonLength ? "Falsy" : "Not Falsy";
+
+console.log(isFalsyComparison);
+
+//exo 06
+
+console.log(4 > 3 && 10 < 12); //true
+console.log(4 > 3 && 10 > 12); //false
+console.log(4 > 3 || 10 < 12); //true
+console.log(4 > 3 || 10 > 12); //true
+console.log(!(4 > 3)); //false
+console.log(!(4 < 3)); //true
+console.log(!(false)); //true
+console.log(!(4 > 3 && 10 < 12)); //false
+console.log(!(4 > 3 && 10 > 12)); //true
+console.log(!(4 === '4')); //true
+
+const str1 = 'python';
+const str2 = 'dragon';
+const isFalsyVal = str1.includes('on') || str2.includes('on') ? true : false;
+console.log(isFalsyVal); //true
+
+//exo 07
+
+const time = new Date(); 
+console.log(time); //Wed Aug 23 2023 10:39:33 GMT+0100 (Central European Standard Time)
+console.log(time.getFullYear()); // 2023
+console.log(time.getMonth() + 1); // 7
+console.log(time.getDate()); // 23
+console.log(time.getDay()); // 3
+console.log(time.getHours()); // 10
+console.log(time.getMinutes()); // 39
+console.log(time.getTime()); // 1692783573531 seconds since January 1, 1970 00:00:00 GMT to 10:39:33 GMT    
+
+//Exercice level 02
+
+//exo 01
+const base = parseFloat(prompt('Enter base:'));
+const h = parseFloat(prompt('Enter Height:'));
+let area = 0.5*base*h;
+console.log(`the area is ${area}`); // 100
+
+// exo 02
+
+let a = parseFloat(prompt('Enter side a:'));
+let b = parseFloat(prompt('Enter side b:'));
+let c = parseFloat(prompt('Enter side c:'));
+let p = a+b+c;
+console.log(`the perimeter is ${p}`); //12
+
+//exo 03
+
+let length = parseFloat(prompt('Enter L: '));
+let width = parseFloat(prompt('Enter W: '));
+let areas = length * width;
+let perimeter = 2*(length+width);
+console.log(`the perimeter is ${perimeter}`); //
+console.log(`the area is ${areas}`); //
+
+//exo 04
+
+let r = parseFloat(prompt('Enter L: '));
+const Pi = 3.14;
+let ar = r * r * Pi;
+let per= 2*Pi*r;
+console.log(`the perimeter is ${per}`); //
+console.log(`the area is ${ar}`); //
+
+//ex 05
+
+// Equation: y = 2x - 2
+
+// Slope (m) is the coefficient of x
+const slope = 2;
+
+// x-intercept: When y = 0
+// 0 = 2x - 2
+// 2x = 2
+// x = 1
+const xIntercept = 1;
+
+// y-intercept: When x = 0
+const yIntercept = -2;
+
+console.log(`Slope (m): ${slope}`);
+console.log(`x-intercept: (${xIntercept}, 0)`);//(1,0)
+console.log(`y-intercept: (0, ${yIntercept})`);//(0,-2)
+
+//EXO 06
+
+// Points
+const x1 = 2;
+const y1 = 2;
+const x2 = 6;
+const y2 = 10;
+
+// Calculate the slope
+const slopes = (y2 - y1) / (x2 - x1);
+
+console.log(`The slope between (${x1}, ${y1}) and (${x2}, ${y2}) is ${slopes}`);//2
+
+//exo 07
+
+// Equation: y = 2x - 2
+
+// Given points
+const x1 = 2;
+const y1 = 2;
+const x2 = 6;
+const y2 = 10;
+
+// Calculate the slope for the equation y = 2x - 2
+const equationSlope = 2;
+
+// Calculate the slope between the two points
+const pointSlope = (y2 - y1) / (x2 - x1);
+
+// Compare the slopes using ternary operator
+const comparisonResult = equationSlope === pointSlope ? "Equal" : "Not Equal";
+
+console.log(`Slope of y = 2x - 2: ${equationSlope}`);//Slope of y = 2x -2: 2
+console.log(`Slope between (${x1}, ${y1}) and (${x2}, ${y2}): ${pointSlope}`);//slope between (2,2) and (6,10): 2
+console.log(`Comparison result: Slopes are ${comparisonResult}`);// comparison result: Slopes are Equal
+
+//Exo 08
+
+// Equation: y = x^2 + 6x + 9
+
+// Given equation coefficients
+const a = 1;
+const b = 6;
+const c = 9;
+
+// Calculate the discriminant
+const discriminant = Math.sqrt(b * b - 4 * a * c);
+
+// Calculate the two possible x values when y is 0
+const x1 = (-b + discriminant) / (2 * a);
+const x2 = (-b - discriminant) / (2 * a);
+
+console.log(`x1: ${x1}`);//-3
+console.log(`x2: ${x2}`);//-3
+
+//exo 09
+
+let hours = parseFloat(prompt('Enter Hour'));
+let rateHr = parseFloat(prompt('Enter rate per hour'));
+const  salary = hours * rateHr;
+console.log(`Your weekly earning is ${salary}`);//Your weekly earning is 1120
+
+//exo 10
+
+const name = 'Belaid';
+let L = name.length;
+(L > 7)
+? console.log('my name is long')
+: console.log('my name is short')
+//my name is short
+
+//exo 11
+
+let firstName = 'Belaid';
+let lastName = 'DALI OMAR';
+(length.firstName > length.lastName)
+? console.log(`my first name, ${firstName} is longer than my family name, ${lastName}`)
+: console.log(`my last name, ${lastName} is longer than my first name, ${firstName}`)
+//my last name, DALI OMAR is longer than my first name, Belaid
+
+//exo 12
+
+let myAge = 30;
+let yourAge = 32;
+console.log(`you are ${yourAge - myAge} years older than me`);
+// you are 2 years older than me
+
+//exo 13
+
+let birthYear = parseInt(prompt('Enter your birth year'));
+let ages = 2023 - birthYear;
+(ages>18)
+? console.log(`you are ${ages}. You are old enough to drive`)
+: console.log(`you are ${ages}. You will not be allowed to drive`);
+//you are 29. You are old enough to drive
+
+//exo 14
+
+let yrs = parseInt(prompt('Enter number of years you live'));
+const live = new Date();
+console.log(`you lived ${live.getTime()} seconds`);
+//you lived 1692797539157 seconds
+
+//exo 15
+
+const now = new Date();
+const years = now.getFullYear(); // return year
+const month = now.getMonth() + 1; // return month(0 - 11)
+const date = now.getDate(); // return date (1 - 31)
+const Hours = now.getHours(); // return number (0 - 23)
+const minutes = now.getMinutes(); // return number (0 -59)
+
+console.log(`${years}-${month}-${date} ${Hours}:${minutes}`); 
+//2023-8-23 14:38
+console.log(`${date}-${month}-${years} ${Hours}:${minutes}`);
+//23-8-2023 14:38
+console.log(`${date}/${month}/${years} ${Hours}:${minutes}`);
+// 23/8/2023 14:38
+
+//exercise level 3
+
+//exo 01
+
+
+const months = String(date.getMonth() + 1).padStart(2, '0');
+const day = String(date.getDate()).padStart(2, '0');
+const hourss = String(date.getHours()).padStart(2, '0');
+const Minutes = String(date.getMinutes()).padStart(2, '0');
+
+
+console.log(`${years}-${months}-${day} ${hourss}:${Minutes}`); 
\ No newline at end of file