How to print variable in double quotes in javascript
How To Output Variable data And String With Single Quotes.I Want To Add String After The Value Of mo.Output Should Be Inside Single Quotes. Output Should Be:- '123target' Show
asked Jan 13, 2017 at 7:10
Use double quote to wrap or escape it using
answered Jan 13, 2017 at 7:11
Pranav C BalanPranav C Balan 111k23 gold badges159 silver badges179 bronze badges Try this,
Check jsfiddle link. You haven't kept quotes properly. answered Jan 13, 2017 at 7:13
RahulRahul 17.9k7 gold badges40 silver badges58 bronze badges
answered Jan 13, 2017 at 7:14
hpfshpfs 4789 silver badges13 bronze badges additionally you can also use ES6 template strings (backtics)
answered Jan 13, 2017 at 7:16
Holger WillHolger Will 6,9701 gold badge30 silver badges39 bronze badges IntroductionA string is a sequence of one or more characters that may consist of letters, numbers, or symbols. Strings in JavaScript are primitive data types and immutable, which means they are unchanging. As strings are the way we display and work with text, and text is our main way of communicating and understanding through computers, strings are one of the most fundamental concepts of programming to be familiar with. In this article, we’re going to learn how to create and view the output of strings, how to concatenate strings, how to store strings in variables, and the rules of using quotes, apostrophes, and newlines within strings in JavaScript. Creating and Viewing the Output of StringsIn JavaScript, there are three ways
to write a string — they can be written inside single quotes ( Strings using double quotes and single quotes are effectively the same. As there is no convention or official preference for single- or double-quoted strings, all that matters is keeping consistent within project program files.
The third and newest way to create a string is called a template literal. Template literals use the backtick (also known as a grave accent) and work the same way as regular strings with a few additional bonuses, which we will cover in this article.
The easiest way to view the output of a string is to print it to the console, with
Another simple way to output a value is to send an alert popup to the browser with
Running the line above will produce the following output in the browser’s user interface:
Storing a String in a VariableVariables in JavaScript are named containers that
store a value, using the keywords
Now that the
This will output the string value.
By using variables to stand in for strings, we do not have to retype a string each time we want to use it, making it simpler for us to work with and manipulate strings within our programs. String ConcatenationConcatenation means joining two or more strings together to create a new string. In order to concatenate, we use the concatenation operator, represented by a Let’s create
a simple instance of concatenation, between
Concatenation joins the strings end to end, combining them and outputting a brand new string value. If we would like to have a space between the words
We join strings and variables containing string values with concatenation.
When we combine two or more strings through concatenation we are creating a new string that we can use throughout our program. Variables in Strings with Template LiteralsOne special feature of the template literal feature is the ability to include expressions and variables within a string. Instead of having to use concatenation, we can use the
As we can see, including expressions in template literals is another way to accomplish the same result. In this case, using template literals might be easier to write and more convenient. String Literals and String ValuesYou might notice that the strings we write in the source code are encased in quotes or backticks, but the actual printed output does not include any quotations.
There is a distinction when referring to each of these. A string literal is the string as it is written in the source code, including quotations. A string value is what we see in the output, and does not include quotations. In the above example, Escaping Quotes and Apostrophes in StringsDue to the fact that quotation marks are used to denote strings, special considerations must be made when using apostrophes and quotes in strings. Attempting to use an apostrophe in the middle of a single-quoted string, for example, will end the string, and JavaScript will attempt to parse the rest of the intended string as code. We can see this by attempting to use an apostrophe in the
The same would apply to attempting to use quotes in a double-quoted string. In order to avoid an error being thrown in these situations, we have a few options that we can use:
We will explore these options below. Using the Alternate String SyntaxAn easy way to get around isolated cases of potentially broken strings is to use the opposite string syntax of the one you’re currently using. For example, apostrophes in strings built with
Quotation marks in strings built with
In the way we combine single and double quotes, we can control the display of quotation marks and apostrophes within our strings. However, when we are working to use consistent syntax within project programming files, this can be difficult to maintain throughout a codebase. Using the Escape Character (\)We can use the backslash ( The syntax of Using this method, we can use apostrophes in strings built with
We can also use quotation marks in strings built with
This method is a bit messier looking, but you may need to use both an apostrophe and a quotation mark within the same string, which will make escaping necessary. Using Template LiteralsTemplate literals are defined with backticks, and therefore both quotes and apostrophes can be used safely without any sort of extra escaping or consideration.
In addition to preventing the need for character escaping and allowing embedded expressions, template literals provide multi-line support as well, which we will discuss in the next section. With alternating string syntax, using escape characters, and using template literals, there are several ways to safely create a string. Long Strings and NewlinesThere are times you may want to insert a newline character, or carriage return in your string. The
This technically works to get our output on multiple lines. However, writing a very long string on a single line will quickly become very hard to read and work with. We can use the concatenation operator to show the string on multiple lines.
Instead of concatenating multiple strings, we can use the
Note: This method is not preferred, as it may cause issues with some browsers and minifiers. In order to make code more readable, we can instead use template literal strings. These eliminate the need for concatenation or escaping on long strings containing newlines. The string as well as newlines will be preserved.
It’s important to be aware of all the ways of creating newlines and strings that span across multiple lines, as different code bases may be using various standards. ConclusionIn this article, we went over the basics of working with strings in JavaScript, from creating and displaying string literals using single and double quotes, creating template literals, concatenation, escaping, and assigning string values to variables. How do you print double quotes in JavaScript?to show double quote you can simple use escape character("\") to show it.
Can you use double quotes in JavaScript?In JavaScript, single (' ') and double (“ ”) quotes are frequently used for creating a string literal. Generally, there is no difference between using double or single quotes, as both of them represent a string in the end.
How do you use double quotes in a variable?[1] Keeping $ as a special character within double quotes permits referencing a quoted variable ("$variable"), that is, replacing the variable with its value (see Example 4-1, above). Use double quotes to prevent word splitting.
How do I put quotes in JavaScript?In JavaScript, there are three ways to write a string — they can be written inside single quotes ( ' ' ), double quotes ( " " ), or backticks ( ` ` ). The type of quote used must match on both sides, however it is possible that all three styles can be used throughout the same script.
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