Today I will explain how to use javascript variable names with strings. In last session I explained how to create java script variables Previous Article
Now using variable how we can access the length of the variable; let’s check the below
Example
<script> Var Largedata = “My Name is EknowledgeTree”; //to calculate the length of the string we can use length property to display the length Largedata.length; //which displays the string length </script>
Now using length property we can compare the string length.let check it below
<script> Var largedataone = ”mynameiseknowledgetree”; Var largedatatwo = ”getlatestarticlesateknowledgetree”; Largedataone.lenght > largedatatwo.length //here it will check whether the condition true or false and writes the output. </script>
Here in the string character has position numbered index starts from “ 0”
<script> Var largedataone =”Mynameiseknowledgetree I post new articles!”; //Here the first character “M” is indexed as zero and after the long sentence there is space as indexed as 23 and last symbol “!” as 42. Largedataone.length // output 43 </script>
Since the index starts from zero ,but length value will always be one more then the last index.
Finding specific character using charAt() method .
Example below
<script> Var smalldata = “My Name is Joe”; Smalldata.charAt(6); //which will return output as “e” </script>
Now we will see how to concatenate two strings in javascript
Example
<script> Var message=”my name is joe,I am at the age ”; Var age=28; Var displayresults = message + ” of ” + age; //Now the above example returns the output message as below // Output -- > My name is joe, I am at the age of 28 </script>
Thanks for reading this article.
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