How do you do string in html?
Next,
we'll turn our attention to strings — this is what pieces of text are called in programming. In this article, we'll look at all the common things that you really ought to know about strings when learning JavaScript, such as creating strings, escaping quotes in strings, and joining strings together. Words are very important to humans — they are a large part of how we communicate. Since the Web is a largely text-based medium designed to allow humans to communicate and share information, it is useful for us to have control over the words that appear on it.
HTML provides structure and meaning to our text, CSS allows us to precisely style it, and JavaScript contains a number of features for manipulating strings, creating custom welcome messages and prompts, showing the right text labels when needed, sorting terms into the desired order, and much more. Pretty much all of the
programs we've shown you so far in the course have involved some string manipulation. Strings are dealt with similarly to numbers at first glance, but when you dig deeper you'll start to see some
notable differences. Let's start by entering some basic lines into the browser developer console to familiarize ourselves. These lines don't work because any text without quotes around it is assumed to be a variable name, property name, a reserved word, or similar. If the browser can't find it, then an error is raised (e.g. "missing; before statement"). If the browser can see where a string starts, but can't find the end of the string, as indicated by the 2nd quote, it complains with an error (with
"unterminated string literal"). If your program is raising such errors, then go back and check all your strings to make sure you have no missing quote marks. string — try it now:
badString is now set to have the same value as string . Single quotes vs. double quotes
Escaping characters in a stringTo fix our previous problem code line, we need to escape the problem quote mark. Escaping characters means that we do something to them to make sure they are recognized as text, not part of the code. In JavaScript, we do this by putting a backslash just before the character. Try this:
This works fine. You can escape other characters in the same way, e.g. Concatenating stringsConcatenate just means "join together". To join together strings in JavaScript you can use a different type of string, called a template literal. A template literal looks just like a normal string, but instead of using single or double quote marks (
This can work just like a normal string, except you can include variables in it, wrapped inside
You can use the same technique to join together two variables:
Concatenation in contextLet's have a look at concatenation being used in action:
Here we're using the Concatenation using "+"You can also concatenate strings using the
However, template literals usually give you more readable code:
Numbers vs. stringsSo what happens when we try to combine a string and a number? Let's try it in our console:
You might expect this to return an error, but it works just fine. Trying to represent a string as a number doesn't really make sense, but representing a number as a string does, so the browser converts the number to a string and concatenates the two strings. If you have a numeric variable that you want to convert to a string but not change otherwise, or a string variable that you want to convert to a number but not change otherwise, you can use the following two constructs:
These constructs can be really useful in some situations. For example, if a user enters a number into a form's text field, it's a string. However, if you want to add this number to something, you'll need it to be a number, so you could pass it through Including expressions in stringsYou can include JavaScript expressions in template literals, as well as simple variables, and the results will be included in the result:
Multiline stringsTemplate literals respect the line breaks in the source code, so you can write strings that span multiple lines like this:
To have the equivalent output using a normal
string you'd have to include line break characters (
See our Template literals reference page for more examples and details of advanced features. ConclusionSo that's the very basics of strings covered in JavaScript. In the next article, we'll build on this, looking at some of the built-in methods available to strings in JavaScript and how we can use them to manipulate our strings into just the form we want.
In this moduleHow do you add a string to a tag in HTML?The append() & prepend() methods can be used to insert HTML string inside a given element. Both methods parse given HTML string as text and create Text node.
What is a string with example?A string is any series of characters that are interpreted literally by a script. For example, "hello world" and "LKJH019283" are both examples of strings. In computer programming, a string is attached to a variable as shown in the example below.
Does HTML have strings?HTML documents are strings that contain both content and markup. Content looks like: hi there and markup looks like
. In HTML they are blended together so that the string hi there tells the browser to display the words hi there to the screen in whatever a paragraph, according to the browser, looks like.How do you make a string in HTML?The simplest way to do this is to create an element, insert the string into with innerHTML , then return the element. /** * Convert a template string into HTML DOM nodes * @param {String} str The template string * @return {Node} The template HTML */ var stringToHTML = function (str) { var dom = document.
How do you create a string object?There are two ways to create a String object:. By string literal : Java String literal is created by using double quotes. For Example: String s=“Welcome”;. By new keyword : Java String is created by using a keyword “new”. For example: String s=new String(“Welcome”);. What is meant by string in HTML?A string can be any text inside double or single quotes: let carName1 = "Volvo XC60"; let carName2 = 'Volvo XC60'; String indexes are zero-based: The first character is in position 0, the second in 1, and so on.
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