Declaration or statement expected javascript

C declaration or statement expected javascript code example

will execute the statements inside function body. It should look like this: will expect to return an object literal expression, e.g. JSON object.

Nested if statement: expected declaration or statement at end of input

It’s the typical indent problem.

One thing you know for sure is that you can’t have two ‘else’s for the same IF. If you follow your code you’ll see:

Now the corrected version

 if (let==s) < s=x-y; printf("x-y is %d \n", s); >else < if (let==m) < m=x*y; printf("x*y is %d \n", m); >else //REINDENTED THIS ELSE, AND THE ERROR BECOMES VISIBLE < d=x/y; printf("x/y is %d \n", d); >>//THIS IS THE ONE MISSING 

int x = 4; if (x == 1) < // Do stuff >else if (x == 2) < // Do stuff because x isn't 1 >else if (x == 3) < // Do stuff because x isn't 1 or 2 >else < // Do stuff because x isn't 1, 2 or 3 >

so the next > closes the previous else, and the main() is missing its closing >

It is generally best to keep the if / else pairs indented to the same level to avoid these mistakes

Declaration or statement expected javascript/typescript, Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question.Provide details and share your research! But avoid …. Asking for help, clarification, or responding to other answers. Code samplelet x0, x1, y0, y1;if(this.props.viewport) <(= this.props.viewport);>Feedback

How do I fix «Declaration or statement expected. ts(1128)» in Discord.js?

You are missing a closing curly bracket — this is your exact code, but fixed.

client.on('message', message => < //console.log(message.content); if (message.content.startsWith(`$`)) < message.channel.send("oh yeah it's the prefix of the bot") >if (message.content.startsWith(`$gif`)) < giphy.trending("gifs", <>) .then((response) => < var totalResponses = response.data.length; var responseIndex = Math.floor((Math.random() * 10) + 1) % totalResponses; var responseFinal = response.data[responseIndex] message.channel.send("There you go!", < files: [responseFinal.images.fixed_height.url] >) file >) > >) 

Error: expected declaration or statement at end of input, I often copy and paste method signatures to the top of my code when forward declaring. I remember a couple of instances where I forgot to replace the ‘

Expected a declaration error in c

TS1128: Declaration or statement expected.

I just had this issue. I renamed the file and the error is gone.

Declaration or statement expected Code Example, // This example shows that you need to wrap your line in parenthesis. 2. // This is the syntax for destructuring after declaration as shown in the example here: 3. . 4. let x0, x1, y0, y1; 5.

Js ‘:’ Expected node js

Remove the parentheses outside the body of the function (req, res) => . It should look like this:

router.post("/register", (req, res) => < User.findOne(< email: req.body.email >) // other code inside >); 

() => (<>) will expect to return an object literal expression, e.g. JSON object. () => <> will execute the statements inside function body.

Read more at MDCN: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/Arrow_functions#Syntax

In an arrow function, the syntax you are using here

const foo = () => (); console.log(foo());

const foo = () => < return < foo: 'bar' >>;console.log(foo()); 

So you either need to fix your code to really return a valid object, or remove (< at the beginning, and the >) at the end of your function

router.post("/register", (req, res) => < User.findOne(< email: req.body.email >) // . >); 

C compile error: expected declaration or statement at, When I try to compile my code I get three errors all stating «error: expected declaration or statement at end of input» All pointing to the same line. expected declaration or statement at end of input» All pointing to the same line. The line changes depending on sections that I have commented out. (For …

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Declaration or Statement Expected Error in TypeScript

This tutorial explains the Declaration or statement expected error in JavaScript or TypeScript and why the compiler throws this error. All the major reasons for this error will be discussed, and how it can be avoided among the developer’s community.

Declaration or statement expected Error in JavaScript or TypeScript

The Declaration or statement expected error in JavaScript or TypeScript occurs when we have a syntax error in the code.

For instance, consider the destructuring of an object in the file with the wrong syntax, exporting a module in the file with the wrong name, or having a missing or inconsistent bracket.

Consider the following example of a code where a different Declaration or statement expected occurs due to the syntax error inside the code.

let oneData: number;  const obj =   val: 1, >;  // 1. ⛔️ Parsing error: Declaration or statement expected.   < oneData >= obj; // 👈️ this must be wrapped in parenthesis  const sumObj = (a: number, b: number) => a + b;  // 2. ⛔️ Error: Parsing error: Declaration or statement expected.eslint  export sumObj // 👈️ should be export  // 3. Make sure you're not using reserved words  const caseVal = 'hello world' // 👈️ case is reserved word 

The above code produces the following errors, which are written below.

//output or errors  Variable 'one' is used before being assigned.  Declaration or statement expected. This '=' follows a block of statements, so if you intend to write a destructuring assignment, you might need to wrap the whole assignment in parentheses.  Declaration or statement expected.  'case' is not allowed as a variable declaration name.  Variable declaration expected.  Variable declaration expected. 

Consider the following code, compiled correctly with no Declaration or statement expected errors.

let val: number;  const obj =   val: 1, >;  // ✅ OK  ( < val >= obj); // 👈️ this must be wrapped in parenthesis  console.log(val); // 👉️ 1 

The above code produces the following output.

Declaration or statement expected error also arises sometimes when exporting something that has been declared previously. Whenever this needed to be done, wrap the export in curly braces.

const objSum = (a: number, b: number) => a + b;  // ✅ OK  export < objSum >; 

Ibrahim is a Full Stack developer working as a Software Engineer in a reputable international organization. He has work experience in technologies stack like MERN and Spring Boot. He is an enthusiastic JavaScript lover who loves to provide and share research-based solutions to problems. He loves problem-solving and loves to write solutions of those problems with implemented solutions.

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How to Fix the ‘Declaration or Statement Expected’ Error in JavaScript/TypeScript

Learn how to fix the ‘Declaration or Statement Expected’ error in JavaScript/TypeScript, including common causes and solutions. Find additional resources to avoid and resolve syntax errors.

If you are a JavaScript or TypeScript developer, you might have come across the dreaded “declaration or statement expected” error at some point in your career. This error is a common syntax error that occurs when the code is not written correctly. In this article, we will discuss what this error is, the common causes of the error, and how to fix it.

Understanding the “Declaration or Statement Expected” Error

The “Declaration or statement expected” error occurs when the code is not written correctly. It is a syntax error that is usually caused by missing or misplaced elements in your code. For example, if you forget to close a curly bracket or a parentheses, you will get this error.

This error can occur in a variety of situations, such as when destructuring, exporting, or when there are missing elements in your code. It is important to understand this error as it can save you a lot of time and frustration in the long run.

Common Causes of the Error

There are several common causes of the “Declaration or statement expected” error in JavaScript/TypeScript. Here are some of the most common ones:

Missing or Misplaced Curly Brackets

One of the most common reasons for this error is missing or misplaced curly brackets. For example, if you forget to close a curly bracket after a function declaration or an if statement, you will get this error.

function foo()  // code // missing curly bracket 

Incorrect Export Syntax

Another common cause of this error is incorrect export syntax. In JavaScript, you can export a function or a variable using the export keyword. However, if you use the wrong syntax, you will get this error.

// incorrect export syntax export function foo()  // code > 

Syntax Errors when Exporting Types or Objects

If you are working with TypeScript, you might encounter this error when exporting types or objects. This can happen when you forget to add the type keyword before the type declaration or when you use the wrong syntax for exporting an object.

// incorrect export syntax for types export interface IUser  name: string; age: number; >// incorrect export syntax for objects export const user =  name: "John Doe", age: 30, >; 

Misplaced Parentheses or Brackets

Misplaced parentheses or brackets can also cause this error. For example, if you forget to close a bracket or a parentheses, you will get this error.

// misplaced parentheses let x = (1 + 2;// misplaced brackets let arr = [1, 2, 3; 

How to Fix the Error

Now that we know what causes the “Declaration or statement expected” error, let’s talk about how to fix it. Here are some solutions to this error:

Correcting Syntax Errors

The most common way to fix this error is to correct the syntax errors in your code. Make sure you have closed all the curly brackets and parentheses, and that you are using the correct syntax for exporting functions, variables, types, or objects.

// corrected code function foo()  // code > export  foo >; 

Wrapping the Affected Line in Parentheses

If you have misplaced parentheses, you can wrap the affected line in parentheses to fix the error.

// corrected code let x = (1 + 2); 

TypeScript-Specific Errors and Solutions

If you are working with TypeScript, you might encounter the TS1128 error, which is similar to the “Declaration or statement expected” error. This error is caused when you forget to add the type keyword before the type declaration.

// TS1128 error interface IUser  name: string; age: number; > 

To fix this error, simply add the type keyword before the type declaration.

// corrected code type IUser =  name: string; age: number; >; 

Additional Information and Resources

To avoid syntax errors in your code, here are some tips and best practices:

• Use a linter to catch syntax errors before you run your code.
• Always close your curly brackets and parentheses.
• Use the correct syntax for exporting functions, variables, types, or objects.

Here are some cheat sheets for common syntax errors in javascript/TypeScript:

To debug your code and identify and resolve syntax errors, here are some tools and techniques:

• Use a debugger to step through your code and identify syntax errors.
• Use console.log to log variables and debug your code.
• Use a code editor with syntax highlighting and auto-completion.

Finally, here are some resources to keep up with the latest advancements in JavaScript/TypeScript syntax and development tools:

Other helpful code samples for fixing the ‘Declaration or Statement Expected’ error

In Typescript case in point, Parsing error: Declaration or statement expected code example

let myfunction = something that returns a function export ; 

Conclusion

In conclusion, the “Declaration or statement expected” error is a common syntax error in javascript/TypeScript that can be caused by missing or misplaced elements in your code. To fix this error, make sure you correct the syntax errors in your code and wrap the affected line in parentheses if necessary. Always pay attention to syntax errors in your code and use the resources provided to avoid and fix this error.

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