To get an index of an element in JavaScript, use the indexOf() function. JavaScript array indexOf() is a built-in method that returns the first index at which a given element can be found in the array, or -1 if it is not present. Syntax indexOf(search,startingIndex); Parameters Search – We need to provide the search value in this … Read more

To comment multiple lines in JavaScript, use the /* */. Multiple line comments are used to prevent the execution of many lines of code. Javascript multiline comments, also known as block comments, start with a forward slash followed by an asterisk (/*) and end with an asterisk followed by a forward slash (*/). Syntax /* This is … Read more

To escape special characters in JavaScript, use the encodeURIComponent() method. The encodeURIComponent() is a built-in JavaScript function that encodes a URI by replacing each instance of certain characters with one, two, three, or four escape sequences representing the UTF-8 encoding of the character. Syntax encodeURIComponent(uriComponent); Parameters uri – We can pass any data types like … Read more

To remove the first character from the string in JavaScript, use the slice() method. The string.slice() is a built-in JavaScript method that extracts a part of a string. The slice() method returns the extracted part in a new string. The slice() method does not change the original string. Syntax string.slice(startIndex, endIndex); Parameters start index –  It is … Read more

To get the last character of a string in JavaScript, use the charAt() method. JavaScript charAt() is a built-in String function that returns the character at a specified index (position) in a string. Syntax charAt(index) Parameters index –  It takes one parameter called index, between 0 and string.length-1. If we pass an index that is not valid, then … Read more

To get the first character of a string in JavaScript, use the charAt() function. The charAt() is a built-in JavaScript method that returns the character at a specified index (position) in a string. Syntax charAt(index) Parameters index –  It takes one parameter called index, between 0 and string.length-1. If we pass an index that is … Read more

To get a character from a string in JavaScript, use the charAt() method. The String charAt() is a built-in JavaScript function that returns a character from a string at the specified index. Syntax charAt(index) Arguments The charAt() function takes am index. The index is what we need to pass, which is between 0 and string.length-1. If … Read more

To get time in 12-hour format in Javascript, use the toLocaleString() method. The toLocaleString() is a built-in JavaScript method that returns a string with a language-sensitive representation of a date. Syntax toLocaleString(locales,options); Parameters It takes two parameters: locales and options. But these are also optional. Locales –  We can specify that en-us, etc. Options –  We … Read more

To solve unexpected reserved word await error in JavaScript, declare your function as async. The error “unexpected reserved word await” occurs when we use the ‘await’ keyword inside a not marked as async function. If we need to use the ‘await’, we should make the function async. Let’s take an example where we get this error. … Read more

To solve the error ‘does not provide an export name default’ in JavaScript, use the default keyword to make it the default export and the import. For example, the SyntaxError occurs when we try to import a function or value from the file using default import, but the file does not contain a default export. … Read more