javascript is not null
if(data !== null && data !== '') {
// do something
}javascript is not null
if(data !== null && data !== '') {
// do something
}javascript validate if string null undefined empty
/**
* Checks the string if undefined, null, not typeof string, empty or space(s)
* @param {any} str string to be evaluated
* @returns {boolean} the evaluated result
*/
function isStringNullOrWhiteSpace(str) {
return str === undefined || str === null
|| typeof str !== 'string'
|| str.match(/^ *$/) !== null;
}Copyright © 2021 Codeinu
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