Or we can use third-party libraries like lodash js and underscore js to check if a string contains a substring or not in javascript. These libraries contain so many javascript utility methods that can be used in our daily projects.
Pre-ES6, the common way to check if a string contains a substring was to use indexOf, which is a string method that return -1 if the string does not contain the substring. If the substring is found, it returns the index of the character that starts the string....
The String.indexOf() method returns the index of the first occurrence of the substring. If the string does not contain the given substring, it returns -1. The indexOf() method is case-sensitive and accepts two parameters. The first parameter is the substring to search for, and the second...
strs= strs || "提交信息中不允许有空格。";if(contain(name.value, " ")) { alert(strs); name.focus();returntrue; }returnfalse; }//---function contain(name, charset) { var i;for(i = 0; i < charset.length; i++)if(name.indexOf(charset.charAt(i)) >= 0)returntrue;returnfalse...
toContain()匹配器为我们提供了检查任何元素是否是同一数组或其他顺序对象的一部分的工具。 以下示例将帮助我们了解Jasmine toContain()方法的工作方法。 让我们在之前创建的customerMatcherSpec.js文件中添加以下代码。 describe("Different Methods of Expect Block",function (){ ...
When you run this Vue.js application, you'll see real-time feedback to the user. If the input contains a number, a message saying "Input contains a number" will be displayed; otherwise, the message will be "Input does not contain a number." This simple example demonstrates how you can...
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$Spelling.Theme string "js.modern" Allows you to apply a CSS theme to change the appearance of JavaScript SpellCheck. Corresponds to theme folder in /JavaScriptSpellCheck/themes $Spelling.CaseSensitive bool true Spellchecker notices cAse mIstAkes $Spelling.IgnoreAllCaps bool true Spellchecker ignor...
(text,text)));});// string a + b + c always contains b, whatever the values of a, b and cit('should always contain its substrings',()=>{fc.assert(fc.property(fc.string(),fc.string(),fc.string(),(a,b,c)=>{// Alternatively: no return statement and direct usage of expect ...
URLs (or GitHub repositories) need to contain a commitish string or semver string file: version values are marked as pinned Exits with 0 in case all dependencies are pinned 1 if the dependencies were found that are not pinned and prints their names 🎯 Motivation Pinning dependencies has sev...