#4 JavaScript String Methods

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  • Опубликовано: 13 июл 2024
  • 00:00 Introduction
    03:17 Regex
    06:08 length
    07:37 charAt()
    10:06 indexOf()
    12:58 slice()
    15:33 substring()
    16:39 concat()
    18:22 includes()
    20:49 match()
    24:00 search()
    25:26 split()
    27:42 toUpperCase()
    28:45 toLowerCase()
    29:19 trim()
    30:44 trimStart()
    33:18 trimEnd()
    34:45 padStart
    38:05 padEnd
    39:05 startsWith
    43:14 endsWith
    44:10 replace
    1. length:
    Returns the number of characters in a string.
    2. charAt(index):
    Returns the character at the specified index in a string.
    3. indexOf(substring):
    Returns the index of the first occurrence of a substring in a string. Returns -1 if the substring is not found.
    4. slice(startIndex, endIndex):
    Returns a portion of a string between the specified startIndex and endIndex.
    5. substring(startIndex, endIndex):
    Returns a substring between the specified startIndex and endIndex in a string.
    6. concat(str1, str2, ...):
    Concatenates two or more strings and returns a new string.
    7. includes(searchString):
    Checks if a string contains the specified searchString and returns a boolean.
    8. match(regexp):
    Searches a string for a match against a regular expression and returns an array of matches.
    9. search(regexp):
    Searches a string for a match against a regular expression and returns the index of the first match.
    10. split(separator):
    Splits a string into an array of substrings based on the specified separator.
    11. toUpperCase():
    Converts all characters in a string to uppercase.
    12. toLowerCase():
    Converts all characters in a string to lowercase.
    13. trim():
    Removes whitespaces from both ends of a string.
    14. trimStart():
    Removes whitespaces from the beginning of a string.
    15. trimEnd():
    Removes whitespaces from the end of a string.
    16. padStart(targetLength, padString):
    Pads the start of a string with a specified padString until the resulting string reaches the targetLength.
    17. padEnd(targetLength, padString):
    Pads the end of a string with a specified padString until the resulting string reaches the targetLength.
    18. startsWith(prefix):
    Checks if a string starts with a specified prefix and returns a boolean.
    19. endsWith(suffix):
    Checks if a string ends with a specified suffix and returns a boolean.
    20. replace(search, replacement):
    Replaces the first occurrence of a specified value (search) with another value (replacement) in a string.
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Комментарии • 7

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