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Will return an array of characters h,a,c,k,r and so on.Īccess a character of string using its index (doesn’t work on some versions of ie) Var a = “hackr.io” var arr = a.split(“”) Returns the unicode of character at the specified positionĬonvert a string into array based on special character Var a = “my name is” var b = “john” var c = a.concat(“: ”, b) Joins two or more strings together into another string Var a = “hackr.io is nice website” var b = a.tolowercase(a) Var a = “hackr.io is nice website” var b = a.touppercase (a) Var a = “hackr.io is nice website” var b = a.replace(“nice”, “good”) Var a = “hackr.io is nice website” var b = a.substr(13, 8) Returns the sliced out portion of a string, the second parameter being the length of the final string. Var a = “hackr.io is nice website” var b = a.substring(0, 7) cannot take negative values unlike slice() Substring returns part of the string from start index to the end index specified. Var a = “hackr.io is nice website” var b = a.slice(13) will return nice website. Var a = “hackr.io is nice website” var b = a.search(“nice”) Įxtracts and returns part of a string as another new string Searches and returns position of a specified value in string Var a = “hackr.io is nice website” var b = a.indexof(“nice”, 6) Returns last occurrence of text in a string Var a = “hackr.io is nice website” var b = a.indexof(“nice”)
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Eg, function add(a, b) String Methods Methodįinds position of the first occurrence of a character or text in the string Prints the string value of the elements of the arrayĪ group of tasks can be performed in a single function. Returns the last position of an element in the arrayĬut a portion of one array and put it in a new arrayĪdd elements to an array in a specific manner and positionĪdd new element to the array in the beginningĪdd new element to the array as the last one Returns the index (first position) of an element in the array Joins all the elements of one array as a string Eg, var subjectlist = Arrays can perform the following functions: Functions
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To include javascript code on a page, the syntax is – // all the code Here you can go with the quick guide or JS cheat sheet which will help you to know more about shortcuts and tricks: Usually, JavaScript functions are involved when a client does an action, for example, submitting a form, hovering the mouse, scroll etc… Web pages are more lively, dynamic and interactive due to the presence of JS code. Javascript is a client-side scripting language supported by browsers.