37 lines
1.7 KiB
C#
37 lines
1.7 KiB
C#
namespace Just.Core.Extensions;
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public static class SystemStringExtensions
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{
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/// <summary>
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/// Indicates whether the specified string is null or an empty string ("").
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/// </summary>
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/// <param name="str">The string to test.</param>
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/// <returns>true if the value parameter is null or an empty string (""); otherwise, false.</returns>
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public static bool IsNullOrEmpty([NotNullWhen(false)] this string? str) => string.IsNullOrEmpty(str);
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/// <summary>
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/// Indicates whether a specified string is null, empty, or consists only of white-space
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/// characters.
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/// </summary>
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/// <param name="str">The string to test.</param>
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/// <returns>true if the value parameter is null or <see cref="System.String.Empty"/>, or if value consists
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/// exclusively of white-space characters.</returns>
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public static bool IsNullOrWhiteSpace([NotNullWhen(false)] this string? str) => string.IsNullOrWhiteSpace(str);
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/// <summary>
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/// Indicates whether the specified string contains any characters.
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/// </summary>
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/// <param name="str">The string to test.</param>
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/// <returns>true if the value parameter contains any characters; otherwise, false.</returns>
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public static bool IsNotNullOrEmpty([NotNullWhen(true)] this string? str) => !string.IsNullOrEmpty(str);
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/// <summary>
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/// Indicates whether a specified string contains non white-space characters.
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/// </summary>
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/// <param name="str">The string to test.</param>
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/// <returns>true if the value parameter contains non white-space characters; otherwise, false.</returns>
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public static bool IsNotNullOrWhiteSpace([NotNullWhen(true)] this string? str) => !string.IsNullOrWhiteSpace(str);
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}
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