I need to check whether a string contains another string or not? var str1 = "ABCDEFGHIJKLMNOP"; var str2 = "DEFG"; Which function do I use to find out if str1 contains str2? 你可以使用javascript的indexOf函数。 var str1 = "ABCDEFGHIJKLMNOP"; var str2 = "DEFG"; if(str1.indexOf(...
如果在字符串中找到它,它还将显示其起始位置。 // C# program to demonstrate the// String.Contains() Method// along with the starting positionusingSystem;classExample{publicstaticvoidMain(){stringsub1 ="GeeksforGeeks is a Computer Science Portal";stringsub2 ="Computer";// Check if the substring...
方法一: string title = "STRING"; bool contains = title.IndexOf("string", StringComparison.OrdinalIgnoreCase) >= 0; 方法二:封装起来 public static bool Contains(this string source, string toCheck, StringComparison comp) { return source.IndexOf(toCheck, comp) >= 0; }...
To check for case insensitive string contains, use the regular expressions. Add suffix “i” after the string regular expression as shown. var actualstring = "Javascript Regular Exp"; var regexp = "javascript"; /regexp/i.test(actualstring); //returns true ...
Anyway, let's see a few of the ways in which you can check if a string contains a substring in JavaScript. Note: The first two methods shown below also work on arrays, which tells you if an array contains a given value (or the index of it forindexOf()). Keep this in mind when...
Allocates a new String that contains characters from a subarray of the character array argument. String(int[] codePoints, int offset, int count) Allocates a new String that contains characters from a subarray of the Unicode code point array argument. String(String original) Initializes a ne...
textBox1.Text = Test.Contains(new string [] {"1", "2"}).ToString(); //textBox1 因為是比對不同的陣列實體,所以會等於 flase 所以想請問各位前輩,如果要比對List<string [] >內是否有{"1","2"}因該如何處理呢? 麻煩各位解惑,謝謝
publicboolContains(stringvalue, StringComparison comparisonType); 参数 value String 要搜寻的字符串。 comparisonType StringComparison 一个枚举值,用于指定比较中要使用的规则。 返回 Boolean 如果true参数出现在此字符串中,或者value为空字符串 (""),则为value;否则为false。
WhenIndexOfis used to check if the result is equal to-1or greater or equal than0, the call can be safely substituted withContainswithout an impact on performance. Depending on theIndexOfoverload being used, the suggested fix could get acomparisonTypeargument added: ...
# Python program to check if a string contains the substring# using count() method# Initializing stringstring ='Hi this is STechies sites'# count method count number of time substring occurs# in given string between index 0 20# it returns integer value# if value is greater then 0# it wi...