![]() The method returns a boolean true in case the string starts with the specified characters. ![]() case insensitive function contains(haystack, needle) Ĭhange a Page's Stylesheet Using Javascript Javascript If-Else Shortcut Ternary Operator Swap Variables in One Line of Code Javascript array_unique (similar to PHP) Sort a Javascript 2d Array by Any Column Value Sort an HTML Table by Column Using Javascript Variable Name Functions Accordion Menu Replace All function using Javascript Occurrences of Substring in String Detect Javascript Swipe for Touch Screens and Mouse Get Hypotenuse Using Pythagorean Create an Image Zoom Window with Javascript Get String Between Strings with Javascript Immediately Invoke a Javascript Function Check if String Contains Substring Round Numbers Accurately to Specified Place Value with Javascript Check if String Contains Substring Pass Javascript Variables to Another Page Split a String Into a 2-Dimensional-Array Strip HTML Tags from String Remove Quotes from String Remove Return Characters From String Determine if a Javascript Variable is a Number Copy text from an input box to the clipboard Fade an Element In or Out with a Toggle Javascript Equivalent to file_get_contents("filename.The JavaScript startsWith method is used to determine whether a string starts with a character or a particular string. The following function works in all browsers: For example, "Hello world".includes("world") returns true for most browsers, but is not supported in IE 6 through 11 and Opera Mini, and older versions of other browsers. Javascript also provides the includes function supported by most browsers. ![]() This javascript function returns true if the substring is contained within the string. ![]()
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