Conteúdo do Curso
Introduction to JavaScript
Introduction to JavaScript
3. Performing Operations in JavaScript
Understanding Assignment OperatorsMathematical Operations in JavaScriptAssignment Operators in JavaScriptIncrement and Decrement OperatorsChallenge: Variable Operations PracticeComparison Operators in JavaScriptLogical Operators ExplainedChallenge: Compare Variables in JavaScriptConcatenating Strings in JavaScriptChallenge: Build Sentences with JavaScript
4. Controlling Program Flow with Conditional Statements
5. Looping Through Data in JavaScript
Array Methods and Manipulation
let arr = [1, 2, 3]; arr.push(4); arr.push(5); arr.push(6); console.log(arr);
let arr = [1, 2, 3]; console.log("Array:", arr); arr.unshift(222); // Insert element at the start console.log("Array:", arr);
let arr = [1, 2]; arr[2] = 3; arr[3] = 4; console.log(arr);
let arr = [1, 2, 3]; arr[0] = 4; console.log("Array:", arr);
let myArray = []; myArray[myArray.length] = "indexing"; console.log("After first indexing:", myArray); myArray.push("pushing"); console.log("After first pushing:", myArray); myArray[myArray.length] = "indexing"; console.log("After second indexing:", myArray); myArray.push("pushing"); console.log("After second pushing:", myArray);
let arr = [11, 22, 33, 44]; console.log("Array:", arr); let x = arr.pop(); // Remove and save the last element in `arr` to variable `x` console.log("Popped element:", x); console.log("Array now:", arr);
let arr = [11, 22, 33, 44, 55, 66]; console.log("Array:", arr); let popped = arr.pop(); // Remove the last element console.log("Popped:", popped); console.log("Array:", arr); let shifted = arr.shift(); // Remove the first element console.log("Shifted:", shifted); console.log("Array:", arr);
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Seção 2. Capítulo 7