JavaScript date math not working
Date : March 29 2020, 07:55 AM
it should still fix some issue I have searched this forum and found many useful answers, but one of the answers that I used only works under certain conditions. , Here secondday.setDate(firstday.getDate()+1) secondday = new Date(firstday.getFullYear(), firstday.getMonth(), firstday.getDate()+1)
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Javascript If / Else with simple math not working
Date : March 29 2020, 07:55 AM
it helps some times I have this script that gives me the time from the date I entered to the current time in days. , Seems to be some typography errors. A corrected version is: var millennium =new Date(2015, 6, 17);
var today=new Date();
var one_day=1000*60*60*24;
var x = Math.ceil((today.getTime()-millennium.getTime())/one_day)
if(x == 1) {
document.write(x + " day ago");
}
else {
document.write(x + " days ago");
}
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Javascript uint32 math not working?
Date : March 29 2020, 07:55 AM
I hope this helps you . That's because JS doesn't have an Integer type. So * does the multiplication in 64 bit floats. But these don't have enough precision for the result: /* Exact math */ 1103515245 × 1103527590 = 1217759518843109550
/* JavaScript */ 1103515245 * 1103527590 === 1217759518843109600
Number.MAX_SAFE_INTEGER === 0009007199254740991
a[2] = Math.imul(a[0], a[1]); // -1770094418
a[2]; // 2524872878
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javascript math not working
Date : March 29 2020, 07:55 AM
hop of those help? Actually javascript produces decimal values of 1.333333 for 4/3 and it multiplied with 3 which tends to produce 4. 1 is the correct result for 4-((4/3)*3)+1 but if you want 2 as your result then you need to parse the value of 4/3 to int so 1.333333 will become 1 which is multiplied with 3 will produce 3. alert(4-(parseInt(4/3)*3)+1)
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Math.exp not working as expected in Javascript
Date : March 29 2020, 07:55 AM
may help you . ^ in javascript is the bitwise XOR operator, not an exponent. You are looking for Math.pow or ** (ES7 - use the former for browsers): Math.round(99 * Math.exp(-0.0065 * (28-variable) ** 2))
const fn = n =>
Math.round(99 * Math.exp(-0.0065 * (28-n) ** 2))
console.log(fn(28))
console.log(fn(18))
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