all string important method in javascript | javascript tutorial for beginners in hindi

Publicado el: 07 octubre 2021
en el canal de: catch Error

var sen='In this tutorial we learn about string methods in javascript';
// //slice
// console.log(sen.slice(0,8));
// // here first is starting index and second is end index and end index is excluded
// console.log(sen.slice(2));
// // end index automatically set length of string

// console.log(sen.slice(5,-2));
// // slice also take -index which start from end of the string and negative index start from -1 not 0

//substr method
// console.log(sen.substr(2,5))
// here first is starting index and second is length means how many indexes we needed after 2(index 2 is also included in length)

//substring method
// console.log(sen.substring(2,5));
//here first index is starting and second is ending index and this is very similar to slice but it doesn't take negative indexes

//replace method
// var rep_sen=sen.replace('javascript','python');
//first is what we want to replace and second from which we want to replace
// console.log(rep_sen);

//upppercase and lowercase
// console.log(sen.toUpperCase());
// console.log(sen.toLowerCase());

//trim
// var channel_name=' catch error ';
// console.log(channel_name.trim());
//used to remove extra spaces

//charat
// console.log(sen.charAt(1));
//used to get a specific value on a particular index
//charat takes index values as parameter

//using index
// console.log(sen[3]);
// both are same charat and this method

//split function
// console.log(sen.split(' '));
//it split the string by split function parameter
//in this parameter is space so it's split string from space and return a javascript array

//conact method
// var channel_name="catch error";
// var channel_like=": please do subscribe my channel and like the video";
// console.log(channel_name.concat(channel_like));
//used to concat to two string in javascript

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