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+
+# 1.Variables and Data Types
+
+## Assignment
+> For making a shopping cart I would first use String,int data types mainly.I might use array for some rare cases like including multiple items under one bigger group. Then would use boolean to know wheter the item is bought or no.
+## Challenge
+> Here when age=1; and Age=2; the java script treats both the variables as two different variable and returns false because both are different variables and 1!=2
+### Gotchas
+> 1. Another coommon type of gotcha is "==" vs "===" in cases like 12 == '12' it return true as javascript coerces them to same data type and compares the value but '===' strictly compares both the value and data type so in 12 === '12' it returns false
+> 2. If we add a number to string then we end with string ,example 1+'1' then output would be like '11'.
+> 3. NaN(Not a Number) is not equal to itself and if we use isNaN("") or isNaN([]) then javascript coerces them into number data type and then return true.
+> 4. When new array is created it is created with empty items so we need to manually intialize it.
+> 5. 0.1+0.2 !==0.3 as java using floating-point arithemetic so leads to precision errors.
+
+
+# 2.functions-methods
+
+## Assignment
+> Function with no return:
+```
+ function name(){
+ console.log("Sathvik");
+ }
+ name();
+```
+> Function with return:
+```
+function name(s){
+ return s;
+ }
+ name("Sathvik");
+```
+> Function with mixed parameters
+
+```
+function Details(name,age=0){
+ return {age,name};
+ }
+ Details("Sathvik");
+Output:
+Object { age: 0, name: "Sathvik" }
+```
+# 3.Making-decision
+
+## Assingment
+
+> Function performs set of tasks but method performs a set of tasks that are associated with an object.
+```
+const allStudents = [
+ 'A',
+ 'B-',
+ 1,
+ 4,
+ 5,
+ 2
+]
+
+let studentsWhoPass = [];
+function pass(s){
+ if(typeof s =="number" && s>2){
+ studentsWhoPass.push(s);
+ }
+ else if(typeof s == "string" && s!== 'C-'){
+ studentsWhoPass.push(s)
+ }
+}
+allStudents.forEach(pass);
+console.log(studentsWhoPass);
+```
+### Challenge
+> Function with if .. else:
+```
+function check(s){
+ if(s === 200){
+ return 1
+ }
+ else{
+ return 0
+ }
+}
+check(150)
+```
+>Function with ternary operator
+```
+let a=200
+const c = a === 200 ? 1:0;
+console.log(c);
+```
+# 4.Arrays-loops
+
+### Assignment
+ ```
+
+let arr=[]
+for(let i=1;i<20;i++){
+ if(i%3 === 0){
+ arr.push(i);
+ }…
+```
+### Challenge
+
+```
+let arr=[1,23,4,45,6,7,8];
+arr.forEach((element)=>console.log(element));
+```
diff --git a/typing-game-solution/.vscode/settings.json b/typing-game-solution/.vscode/settings.json
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+{
+ "liveServer.settings.port": 5501
+}
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diff --git a/typing-game-solution/index.html b/typing-game-solution/index.html
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+
+
+
+ Typing game
+
+
+
+
Typing game!
+
Practice your typing skills with a quote from Sherlock Holmes. Click **start** to begin!
+
+
+
+
+
+
+
+
+
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diff --git a/typing-game-solution/script.js b/typing-game-solution/script.js
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+// inside script.js
+// all of our quotes
+const quotes = [
+ 'When you have eliminated the impossible, whatever remains, however improbable, must be the truth.',
+ 'There is nothing more deceptive than an obvious fact.',
+ 'I ought to know by this time that when a fact appears to be opposed to a long train of deductions it invariably proves to be capable of bearing some other interpretation.',
+ 'I never make exceptions. An exception disproves the rule.',
+ 'What one man can invent another can discover.',
+ 'Nothing clears up a case so much as stating it to another person.',
+ 'Education never ends, Watson. It is a series of lessons, with the greatest for the last.',
+];
+// store the list of words and the index of the word the player is currently typing
+let words = [];
+let wordIndex = 0;
+// the starting time
+let startTime = Date.now();
+// page elements
+
+const quoteElement = document.getElementById('quote');
+const messageElement = document.getElementById('message');
+const typedValueElement = document.getElementById('typed-value');
+// at the end of script.js
+let best_time=parseFloat(localStorage.getItem("best_time")) || 10000000.0;
+
+document.getElementById('start').addEventListener('click', () => {
+ // get a quote
+ const quoteIndex = Math.floor(Math.random() * quotes.length);
+ const quote = quotes[quoteIndex];
+ // Put the quote into an array of words
+ words = quote.split(' ');
+ // reset the word index for tracking
+ wordIndex = 0;
+
+ // UI updates
+ // Create an array of span elements so we can set a class
+ const spanWords = words.map(function(word) { return `${word} `});
+ // Convert into string and set as innerHTML on quote display
+ quoteElement.innerHTML = spanWords.join('');
+ // Highlight the first word
+ quoteElement.childNodes[0].className = 'highlight';
+ // Clear any prior messages
+ messageElement.innerText = '';
+
+ // Setup the textbox
+ // Clear the textbox
+ typedValueElement.value = '';
+ // set focus
+ typedValueElement.focus();
+ // set the event handler
+
+ // Start the timer
+ startTime = new Date().getTime();
+ able();
+ });
+ // at the end of script.js
+ typedValueElement.addEventListener('input', function runn() {
+ // Get the current word
+ const currentWord = words[wordIndex];
+ // get the current value
+ const typedValue = typedValueElement.value;
+
+ if (typedValue === currentWord && wordIndex === words.length - 1 ) {
+ // end of sentence
+ // Display success
+
+ const elapsedTime = new Date().getTime() - startTime;
+ if (elapsedTime
+
+
+
+ Guess-the-char
+
+
+