Delstek Tools

Swap Two Numbers

void swap(int *a, int *b) {
    int temp = *a;
    *a = *b;
    *b = temp;
}

Reverse a String

void reverseString(char *str) {
    int len = strlen(str);
    for (int i = 0; i < len / 2; ++i) {
        char temp = str[i];
        str[i] = str[len - i - 1];
        str[len - i - 1] = temp;
    }
}

Find the Largest Element in an Array

int findMax(int arr[], int size) {
    int max = arr[0];
    for (int i = 1; i < size; ++i) {
        if (arr[i] > max) {
            max = arr[i];
        }
    }
    return max;
}

Calculate the Sum of Elements in an Array

int sumArray(int arr[], int size) {
    int sum = 0;
    for (int i = 0; i < size; ++i) {
        sum += arr[i];
    }
    return sum;
}

Sort an Array using Bubble Sort

void bubbleSort(int arr[], int size) {
    for (int i = 0; i < size - 1; ++i) {
        for (int j = 0; j < size - i - 1; ++j) {
            if (arr[j] > arr[j + 1]) {
                int temp = arr[j];
                arr[j] = arr[j + 1];
                arr[j + 1] = temp;
            }
        }
    }
}

Remove Number input Spinner button

/* Webkit */
input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

/* Firefox */
input[type=number] {
  -moz-appearance: textfield;
}
        

Remove Duplicates from an Array

function removeDuplicates(arr) {
    return [...new Set(arr)];
}

Check if a String is a Palindrome

function isPalindrome(str) {
    const cleaned = str.replace(/[^a-zA-Z0-9]/g, "").toLowerCase();
    return cleaned === cleaned.split("").reverse().join("");
}

Sort an Array of Numbers

function sortArray(arr) {
    return arr.slice().sort((a, b) => a - b);
}

Remove item by value from Array

function removeItemOnce(arr, value) {
    var index = arr.indexOf(value);
    if (index > -1) {
        arr.splice(index, 1);
    }
    return arr;
}

function removeItemAll(arr, value) {
    var i = 0;
    while (i < arr.length) {
        if (arr[i] === value) {
        arr.splice(i, 1);
        } else {
        ++i;
        }
    }
    return arr;
}

Replace all occurrences of substring

function replaceAllOccurences(string, search, replacement) {
    return string.split(search).join(replacement);
}

Copy to Clipboard

function copyToClipboard(text) {
    navigator.clipboard.writeText(text);
}

Detect Safari browser

function isSafari() {
    return "SVGTRefElement" in window ||
        "onwebkitmouseforceup" in window;
}