In JavaScript, includes() is a string method that determines whether a substring is found in a string. Because the includes() method is a method of the String object, it must be invoked through a particular instance of the String class. ...
所有主流浏览器都支持 includes 方法。 示例 JavaScript String Method 点击按钮查看是否包含要查找的字符串,找到的话返回 true,否则返回 false。 点我 注意: IE 11 及更早版本不支持 includes() 方法 。 function myFunction() { var str = "Hello world, welcome to the Runoob."; var n = ...
JavaScript String includes() 方法 includes()方法确定字符串是否包含指定字符串的字符。如果包含返回true,否则返回false。 注意:includes()方法区分大小写。 实例: 检查字符串是否包含“world”: var str = "Hello world, welcome to the universe."; var n = str.includes("world"); 复制尝试一下 ...
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Check if a string includes "world": lettext ="Hello world, welcome to the universe."; letresult = text.includes("world"); Try it Yourself » More examples below. Description Theincludes()method returnstrueif a string contains a specified string. ...
JavaScript String 0 - This is a modal window. No compatible source was found for this media. htmlheadtitleJavaScript StringMethodtitleheadbodyscriptstrsearchStringdocumentstrdocumentsearchStringdocument.write(str.includes(searchString));}catch(error){document.write("",error);} Output Once the above p...
JavaScript String includes() Method: Here, we are going to learn about the includes() method of the string in JavaScript with Example.
Find out all about the JavaScript includes() method of a stringTHE AHA STACK MASTERCLASS Launching May 27th Check if a string includes the value of the string passed as parameter..'JavaScript'.includes('Script') //true 'JavaScript'.includes('script') //false 'JavaScript'.includes('...
On .NET Framework: Create a custom method. The following example illustrates one such approach. It defines aStringextension method that includes aStringComparisonparameter and indicates whether a string contains a substring when using the specified form of string comparison. ...
ES6 新的String对象方法includes() 该方法检查字符串中是否包含是指定字符串。 语法 str.includes(searchString[, position]) 参数 searchString − 要检查的字符串 Position − 开始搜索searchString的位置;默认值为0。 返回值 如果包含指定的字符串,则返回true,否则返回false. 例子 var str = 'Hello World';...