updated
hey I tested your code...its breaking for another scenario if I give mobileVersion as sample.pdf its breaking...I am getting skyCloudmageProfilePic as pdfProfilePic...this is without remove typeOf jsfiddle.net/n9d08ko2
where as if I use your conditionI am getting skyCloudmageProfilePic as newDocProfilePic how to get as pdfProfilePic... providing your updated code in this fiddle jsfiddle.net/Lqjhyvmz
if (model.mobilePics) {
skyCloudmageProfilePic = model.mobilePics;
} else {
skyCloudmageProfilePic = "newDocProfilePic";
}
can you tell me how to fix it provding my code below
I was debugging in this fiddle when it reaches this line let kendotxtMenu = ""; you can see the value for skyCloudmageProfilePic as newDocProfilePic skyCloudmageProfilePic = newDocProfilePic
//if (typeof model.mobilePics != "undefined" && model.mobilePics != "") {
//skyCloudmageProfilePic = model.mobilePics; // skyCloudmageProfilePic = newDocProfilePic
// }
//if (typeof skyCloudmageProfilePic == "undefined") {
// skyCloudmageProfilePic = "newDocProfilePic"; // skyCloudmageProfilePic = newDocProfilePic
// }
if ( model.mobilePics != "undefined" && model.mobilePics != "") {
skyCloudmageProfilePic = model.mobilePics; // skyCloudmageProfilePic = undefined
}
if (skyCloudmageProfilePic == "undefined") {
skyCloudmageProfilePic = "newDocProfilePic"; // skyCloudmageProfilePic = undefined
}
let kendotxtMenu = "";
if (model.mobilePics) {
skyCloudmageProfilePic = model.mobilePics;
} else {
skyCloudmageProfilePic = "newDocProfilePic";
}
This should work, in the first you check for undefined and an empty string, but a string will always evaluate to false if it is either undefined or empty.
After looking a little harder I realized your second check is pointless as well. I've adjusted it to fit better.
You should also use '===' wherever possible, this avoids equality checks doing funky things to you. Here's a little post that explains the triple check.
Which equals operator (== vs ===) should be used in JavaScript comparisons?
Use the Boolean value of the variable to check for defined/undefined state:
var x = 1; var y = undefined; if (x) { // if defined console.log("I'm defined"); } if (!y) { // if undefined console.log("I'm undefined"); }
Or, compare the variables with the type undefined
instead of the string "undefined"
:
var x = 1; var y = undefined; if (x !== undefined) { // if defined console.log("I'm defined"); } if (y === undefined) { // if undefined console.log("I'm undefined"); }
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