To check if a Javascript String Contains a substring or not, we can use 7 different Javascript methods as listed in below table.
How do you check if one string contains a substring in JavaScript?Craig Buckler
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. ...
* @method isContainsString(string,subString,Case)*//** * isNum(string,scope) * @param string:string resource * @param scope:all,part*/varStringCheckUtil =function() {}; StringCheckUtil.prototype.isNum=function(string, scope) {//检验参数合法性if((arguments.length != 2) || (typeof(str...
JavaScript String includes() Theincludes()method returns true if a string contains a specified value. Otherwise it returnsfalse. Examples Check if a string includes "world": lettext ="Hello world, welcome to the universe."; text.includes("world"); ...
JavaScript – Detect if a string contains any space How to check if String contains only spaces in JavaScript Check if String starts with a space in JavaScript Replace all occurrences of a string in JavaScript Javascript – Convert array to String (with and without commas)...
JavaScript exercises, practice and solution: Write a program to check whether a specified character exists between the 2nd and 4th positions in a given string.
By using JavaScript’s built-in method, which determines whether a string contains the specific characters you’re looking for. So let’s say…
使用javascript实现C#的String.contains() 1functionisContains(str, substr) {2returnstr.indexOf(substr) >= 0;3} str为源字符串; substr为查找的字符; 返回true代表包含,false代表不包含。
老实说，我不明白你的问题，但是如果你想根据模式匹配字符串，你可以使用正则表达式。