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Coggle requires JavaScript to display documents.

Javascript - Coggle Diagram

- - - - getIndexToIns([40, 60], 50);
      - }
      - function getIndexToIns(arr, num) {
        
        return 0;
        
        }
        
        {
        
        return sortedArr.length;
        
        if(sortedArr[sortedArr.length - 1] < num)
        
        }
        
        {
        
        if(num > arr[i - 1] && num <= arr[i])
        
        return i;
        
        for(let i = 0; i < arr.length; i++)
        
        let sortedArr = arr.sort((a,b) => (a-b));
- - - - if we want to remove an element from somewhere in the middle? Or remove more than one element at once
      - splice() can take up to 3 parameters
      - The first two parameters of splice() are integers which represent indexes, or positions
      - let array = ['today', 'was', 'not', 'so', 'great'];
      - array.splice(2, 2); .
      - splice() returns a new array containing the value of the removed element
      - let array = ['I', 'am', 'feeling', 'really', 'happy'];
      - let newArray = array.splice(3, 2); => ['really', 'happy']
    - - const numbers = [10, 11, 12, 12, 15];
      - const startIndex = 3;
      - const amountToDelete = 1;
      - numbers.splice(startIndex, amountToDelete, 13, 14);
      - console.log(numbers); => [ 10, 11, 12, 13, 14, 15 ].
  - - - slice() takes only 2 parameters — the first is the index at which to begin extraction, and the second is the index at which to stop extraction
      - let weatherConditions = ['rain', 'snow', 'sleet', 'hail', 'clear'];
      - let todaysWeather = weatherConditions.slice(1, 3); => ['snow', 'sleet']
      - weatherConditions would still have ['rain', 'snow', 'sleet', 'hail', 'clear'].
    - - function copyMachine(arr, num) {
        
        let newArr = [];
        
        while (num >= 1) {
        
        newArr.push([...arr]);
        
        num--;
        
        }
        
        return newArr;
      - }
      - // copyMachine(["it works"], 3) should return [["it works"], ["it works"], ["it works"]]
      - console.log(copyMachine([true, false, true], 2));
  - - - C1: function quickCheck(arr, elem) {
        
        return arr.indexOf(elem) != -1;
      - }
        
        console.log(quickCheck(["squash", "onions", "shallots"], "mushrooms"));
        
        C2: function quickCheck(arr, elem) {
        
        return arr.indexOf(elem) >= 0 ? true : false;
      - }
      - console.log(quickCheck(["squash", "onions", "shallots"], "mushrooms"));
  - - - const object = { a: 1, b: 2, c: 3 };
        for (const property in object) {
        console.log(${property} : ${oject.property} );
        }
        => a: 1 b: 2 c: 3
      - Generate an Array of All Object Keys with Object.keys(obj)
        
        function getArrayOfUsers(obj) {
        return Object.keys(obj);
        }
- - - - element
      - atribute
      - text
    - - document.getElementById
      - document.getElementsByClassName()
        
        trả về mảng HTML Colection
      - document.getElementByTagName()
      - CSS SELECTOR
        
        document.querySelector('.heading')
        
        chỉ select ra 1 phần
        
        document.queraySelectorAll()
      - : :
        
        HTML Colection
        
        document.anchors
        
        trả về tất cả các thẻ a có attribute là
        
        document.forms.form[form-1]
        
        chỉ 1 số thẻ
        
        p
        
        form