javascript syntax for check null or undefined or empty
if (typeof value !== 'undefined' && value) {
//deal with value'
};
javascript syntax for check null or undefined or empty
if (typeof value !== 'undefined' && value) {
//deal with value'
};
javascript null or empty
var myVar=null;
if(myVar === null){
//I am null;
}
if (typeof myVar === 'undefined'){
//myVar is undefined
}
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