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https://github.com/oliverbooth/X10D
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Add IsEmpty/IsWhiteSpace and IsNullOrEmpty/WhiteSpace for string
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@ -56,6 +56,10 @@
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- X10D: Added `Span<T>.Split(Span<T>)`
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- X10D: Added `string.CountSubstring(char)`
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- X10D: Added `string.CountSubstring(string[, StringComparison])`
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- X10D: Added `string.IsEmpty()`
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- X10D: Added `string.IsWhiteSpace()`
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- X10D: Added `string.IsNullOrEmpty()`
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- X10D: Added `string.IsNullOrWhiteSpace()`
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- X10D: Added `TimeSpan.TryParse(ReadOnlySpan<char>, out TimeSpan)`
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- X10D: Added `Quaternion.Multiply(Vector3)` - this functions as an equivalent to Unity's `Quaternion * Vector3` operator
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- X10D: Added `Vector2.Deconstruct()`
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@ -278,6 +278,32 @@ public class StringTests
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Assert.IsFalse("World".IsEmoji());
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}
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[TestMethod]
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public void IsEmpty_ShouldReturnTrue_GivenEmptyString()
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{
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Assert.IsTrue("".IsEmpty());
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Assert.IsTrue(string.Empty.IsEmpty());
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}
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[TestMethod]
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public void IsEmpty_ShouldReturnFalse_GivenWhiteSpaceString()
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{
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Assert.IsFalse(" ".IsEmpty());
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}
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[TestMethod]
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public void IsEmpty_ShouldReturnFalse_GivenNonEmptyString()
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{
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Assert.IsFalse("Hello World".IsEmpty());
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}
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[TestMethod]
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public void IsEmpty_ShouldThrowArgumentNullException_GivenNullString()
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{
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string? value = null;
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Assert.ThrowsException<ArgumentNullException>(() => value!.IsEmpty());
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}
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[TestMethod]
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public void IsLower_ShouldReturnTrue_GivenLowercaseString()
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{
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@ -303,6 +329,58 @@ public class StringTests
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Assert.ThrowsException<ArgumentNullException>(() => value!.IsLower());
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}
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[TestMethod]
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public void IsNullOrEmpty_ShouldReturnTrue_GivenEmptyString()
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{
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Assert.IsTrue("".IsNullOrEmpty());
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Assert.IsTrue(string.Empty.IsNullOrEmpty());
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}
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[TestMethod]
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public void IsNullOrEmpty_ShouldReturnFalse_GivenWhiteSpaceString()
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{
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Assert.IsFalse(" ".IsNullOrEmpty());
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}
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[TestMethod]
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public void IsNullOrEmpty_ShouldReturnFalse_GivenNonEmptyString()
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{
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Assert.IsFalse("Hello World".IsNullOrEmpty());
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}
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[TestMethod]
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public void IsNullOrEmpty_ShouldReturnTrue_GivenNullString()
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{
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string? value = null;
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Assert.IsTrue(value.IsNullOrEmpty());
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}
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[TestMethod]
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public void IsNullOrWhiteSpace_ShouldReturnTrue_GivenEmptyString()
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{
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Assert.IsTrue("".IsNullOrWhiteSpace());
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Assert.IsTrue(string.Empty.IsNullOrWhiteSpace());
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}
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[TestMethod]
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public void IsNullOrWhiteSpace_ShouldReturnTrue_GivenWhiteSpaceString()
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{
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Assert.IsTrue(" ".IsNullOrWhiteSpace());
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}
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[TestMethod]
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public void IsNullOrWhiteSpace_ShouldReturnFalse_GivenNonEmptyString()
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{
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Assert.IsFalse("Hello World".IsNullOrWhiteSpace());
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}
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[TestMethod]
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public void IsNullOrWhiteSpace_ShouldReturnTrue_GivenNullString()
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{
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string? value = null;
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Assert.IsTrue(value.IsNullOrWhiteSpace());
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}
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[TestMethod]
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public void IsPalindrome_ShouldBeCorrect_GivenString()
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{
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@ -358,6 +436,32 @@ public class StringTests
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Assert.ThrowsException<ArgumentNullException>(() => value!.IsUpper());
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}
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[TestMethod]
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public void IsWhiteSpace_ShouldReturnTrue_GivenEmptyString()
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{
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Assert.IsTrue("".IsWhiteSpace());
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Assert.IsTrue(string.Empty.IsWhiteSpace());
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}
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[TestMethod]
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public void IsWhiteSpace_ShouldReturnTrue_GivenWhiteSpaceString()
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{
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Assert.IsTrue(" ".IsWhiteSpace());
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}
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[TestMethod]
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public void IsWhiteSpace_ShouldReturnFalse_GivenNonEmptyString()
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{
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Assert.IsFalse("Hello World".IsWhiteSpace());
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}
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[TestMethod]
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public void IsWhiteSpace_ShouldThrowArgumentNullException_GivenNullString()
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{
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string? value = null;
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Assert.ThrowsException<ArgumentNullException>(() => value!.IsWhiteSpace());
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}
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[TestMethod]
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public void Randomize_ShouldReorder_GivenString()
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{
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@ -1,4 +1,4 @@
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using System.Diagnostics.CodeAnalysis;
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using System.Diagnostics.CodeAnalysis;
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using System.Diagnostics.Contracts;
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using System.Runtime.CompilerServices;
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using System.Text;
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@ -409,6 +409,34 @@ public static class StringExtensions
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return EmojiRegex.Value.IsMatch(value);
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}
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/// <summary>
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/// Returns a value indicating whether the current string represents an empty string.
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/// </summary>
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/// <param name="value">The value to check.</param>
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/// <returns>
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/// <see langword="true" /> if <paramref name="value" /> is empty; otherwise, <see langword="false" />.
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/// </returns>
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/// <exception cref="ArgumentNullException"><paramref name="value" /> is <see langword="null" />.</exception>
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[Pure]
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#if NETSTANDARD2_1
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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#else
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[MethodImpl(MethodImplOptions.AggressiveInlining | MethodImplOptions.AggressiveOptimization)]
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#endif
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public static bool IsEmpty(this string value)
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{
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#if NET6_0_OR_GREATER
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ArgumentNullException.ThrowIfNull(value);
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#else
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if (value is null)
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{
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throw new ArgumentNullException(nameof(value));
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}
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#endif
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return value.Length == 0;
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}
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/// <summary>
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/// Determines if all alpha characters in this string are considered lowercase.
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/// </summary>
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@ -465,6 +493,46 @@ public static class StringExtensions
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return true;
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}
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/// <summary>
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/// Returns a value indicating whether the current string is <see langword="null" /> (<see langword="Nothing" /> in Visual
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/// Basic), or represents an empty string.
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/// </summary>
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/// <param name="value">The value to check.</param>
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/// <returns>
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/// <see langword="true" /> if <paramref name="value" /> is <see langword="null" /> or empty; otherwise,
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/// <see langword="false" />.
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/// </returns>
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[Pure]
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#if NETSTANDARD2_1
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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#else
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[MethodImpl(MethodImplOptions.AggressiveInlining | MethodImplOptions.AggressiveOptimization)]
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#endif
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public static bool IsNullOrEmpty([NotNullWhen(false)] this string? value)
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{
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return string.IsNullOrEmpty(value);
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}
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/// <summary>
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/// Returns a value indicating whether the current string is <see langword="null" /> (<see langword="Nothing" /> in Visual
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/// Basic), represents an empty string, or consists of only whitespace characters.
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/// </summary>
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/// <param name="value">The value to check.</param>
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/// <returns>
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/// <see langword="true" /> if <paramref name="value" /> is <see langword="null" />, empty, or consists of only
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/// whitespace; otherwise, <see langword="false" />.
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/// </returns>
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[Pure]
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#if NETSTANDARD2_1
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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#else
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[MethodImpl(MethodImplOptions.AggressiveInlining | MethodImplOptions.AggressiveOptimization)]
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#endif
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public static bool IsNullOrWhiteSpace([NotNullWhen(false)] this string? value)
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{
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return string.IsNullOrWhiteSpace(value);
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}
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/// <summary>
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/// Determines whether the current string is considered palindromic; that is, the letters within the string are the
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/// same when reversed.
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@ -602,6 +670,49 @@ public static class StringExtensions
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return true;
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}
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/// <summary>
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/// Returns a value indicating whether the current string represents an empty string, or consists of only whitespace
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/// characters.
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/// </summary>
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/// <param name="value">The value to check.</param>
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/// <returns>
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/// <see langword="true" /> if <paramref name="value" /> is empty or consists of only whitespace; otherwise,
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/// <see langword="false" />.
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/// </returns>
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/// <exception cref="ArgumentNullException"><paramref name="value" /> is <see langword="null" />.</exception>
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[Pure]
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#if NETSTANDARD2_1
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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#else
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[MethodImpl(MethodImplOptions.AggressiveInlining | MethodImplOptions.AggressiveOptimization)]
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#endif
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public static bool IsWhiteSpace(this string value)
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{
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#if NET6_0_OR_GREATER
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ArgumentNullException.ThrowIfNull(value);
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#else
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if (value is null)
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{
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throw new ArgumentNullException(nameof(value));
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}
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#endif
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if (value.Length == 0)
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{
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return true;
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}
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for (var index = 0; index < value.Length; index++)
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{
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if (!char.IsWhiteSpace(value[index]))
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{
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return false;
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}
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}
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return true;
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}
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/// <summary>
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/// Repeats a string a specified number of times.
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/// </summary>
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