I need to validate latitude and longitude values within the range of -180 to 180. If a number falls outside of this range, an error should be displayed.
Below is the code I have written for this validation:
if((markerPoint[0] && parseInt(markerPoint[0],10) < -180 || parseInt(markerPoint[0],10) > 180)) {
this.latlngError.push("Invalid coordinates");
} else {
this.isLanLngValid = true;
}
However, it seems that the comparison is not working correctly.
I need to validate values within the range of -180 to 180.
When checking for numbers between -180 and 180, they should be greater than -180 and less than 180. Therefore, we need to adjust the comparison.
if(dataPoint[0] && parseInt(dataPoint[0],10) > -180 && parseInt(dataPoint[0],10) < 180) {
Check out this JsFiddle link
let num = prompt("Enter a number");
checkNumber();
function checkNumber() {
if (num >= -180 && num <= 180) {
alert("Success! We did it!");
} else {
num = prompt("Invalid, please try again");
checkNumber();
}
}
Please use the following code snippet which is guaranteed to work.
if(markerPoint[0]>=-180 && markerPoint[0]<=180)
A common issue with the given code is the precedence of logical operators in JavaScript, where && takes priority over ||. This means that the logic is interpreted as if it were enclosed in parentheses:
if (
(markerPoint[0] && parseInt(markerPoint[0],10) < -180)
||
parseInt(markerPoint[0],10) > 180)
{
To correct this, you can use parentheses to explicitly define the order of operations:
if(markerPoint[0] && (parseInt(markerPoint[0],10) < -180 || parseInt(markerPoint[0],10) > 180)) {
By doing so, the if condition will be met if markerPoint[0] has a non-false value and falls outside the range [-180, 180].
Consider utilizing the Math.abs() function like this:
if (markerPoint[0] && Math.abs(parseInt(markerPoint[0],10)) > 180)
Update: @TedHopp pointed out a potential issue with operator precedence in your current code. Remember that && has higher precedence than ||. A way to avoid this problem is by using Math.abs().
If the problem persists, consider providing more code for further assistance.
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