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javascript check string empty

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Emad Sala answered on May 25, 2020 Popularity 10/10 Helpfulness 3/10

answer javascript check string empty

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javascript check string empty

Comment

let str = "";
if (Boolean(str))
  console.log("This is not an empty string!");
else
  console.log("This is an empty string!");

Popularity 10/10 Helpfulness 3/10 Language javascript

Source: Grepper

Tags: javascript string

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Contributed on Aug 13 2022

Emad Sala

0 Answers Avg Quality 2/10

Closely Related Answers

How to Check for a Null or Empty String in JavaScript

Comments(1)

let myStr = null;

if (myStr === null || myStr.trim() === "") {
  console.log("This is an empty string!");
} else {
  console.log("This is not an empty string!");
}

/*
This will return:

"This is an empty string!"
*/

Popularity 10/10 Helpfulness 8/10 Language javascript

Source: www.freecodecamp.org

Tags: javascript j

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Contributed on Jul 07 2022

OHIOLee

0 Answers Avg Quality 2/10

javascript if string empty

Comment

// Test whether strValue is empty or is None
if (strValue) {
    //do something
}
// Test wheter strValue is empty, but not None 
if (strValue === "") {
    //do something
}

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: stackoverflow.com

Tags: javascript j

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Contributed on May 25 2020

Arno Deceuninck

0 Answers Avg Quality 2/10

javascript string null or empty

Comment

function isNullOrEmpty(str) {
  return str === null || str.trim() === '';
}

// Usage example
const myString = null;
const result = isNullOrEmpty(myString);
console.log(result); // Output: true

Popularity 9/10 Helpfulness 4/10 Language javascript

Source: Grepper

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Contributed on Sep 12 2023

YOU.com

0 Answers Avg Quality 2/10

js if string not empty

Comment

if (!str.length) { ...

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: stackoverflow.com

Tags: javascript j

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Contributed on Feb 26 2021

Borma

0 Answers Avg Quality 2/10

Check for a Null or Empty String in JavaScript

Comment

let myStr = null;

if (myStr === null || myStr.trim() === "") {
  console.log("This is an empty string!");
} else {
  console.log("This is not an empty string!");
}

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: www.freecodecamp.org

Tags: javascript j

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Contributed on Jul 07 2022

Adventurous Ant

0 Answers Avg Quality 2/10

javascript check if string is empty

Comment

var string = "not empty";
if(string == ""){
  console.log("Please Add");
}
else{
  console.log("You can pass"); // console will log this msg because our string is not empty
}

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: Grepper

Tags: is-empty is-empt

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Contributed on Jun 19 2021

Programming Is Fun

0 Answers Avg Quality 2/10

javascript check if Empty string, undefined, null

Comment

Use for Empty string, undefined, null, ...
//To check for a truthy value:

if (strValue) {
    // strValue was non-empty string, true, 42, Infinity, [], ...
}

//To check for a falsy value:
if (!strValue) {
    // strValue was empty string, false, 0, null, undefined, ...
}

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: stackoverflow.com

Tags: javascript j

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Contributed on Jul 27 2022

Obedient Osprey

0 Answers Avg Quality 2/10

javascript test empty

Comment

-1

<?php
/**
* @author :  Nanhe Kumar <nanhe.kumar@gmail.com>
* List of all empty values
**/

$testCase = array(
    1 => '',
    2 => "",
    3 => null,
    4 => array(),
    5 => FALSE,
    6 => NULL,
    7=>'0',
    8=>0,
   
);

foreach ($testCase as $k => $v) {
    if (empty($v)) {
        echo "<br> $k=>$v is empty";
    }
}
/**
Output
1=> is empty
2=> is empty
3=> is empty
4=>Array is empty
5=> is empty
6=> is empty
7=>0 is empty
8=>0 is empty
**/
?>

Popularity 9/10 Helpfulness 1/10 Language javascript

Source: www.php.net

Tags: javascript j

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Contributed on Sep 05 2022

Busy Beaver

0 Answers Avg Quality 2/10

js check if string is empty

Comment

-1

if (strValue) {
    // strValue was non-empty string, true, 42, Infinity, [], ...
}

Popularity 9/10 Helpfulness 1/10 Language javascript

Source: stackoverflow.com

Tags: is-empty is-empt

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Contributed on Mar 26 2023

Cloudy Civet

0 Answers Avg Quality 2/10

javascript check string empty

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