window.innerWidth - workaround for when it returns the wrong value
$begingroup$
- Some JavaScript libraries relies on window
innerWidthandinnerHeightto do their calculations
window.innerWidthis not 100% reliable, which may lead to bugs
matchMedia().matchesis 100% accurate but it returns a boolean value- come around: use
matchMediato verifywindow.innerWidthvalue; if it returns false usematchMediato do a binary search until it finds the correct value
I faced that issue with some libs that relies on window.innerWidth. In cases where I had some media queries the return value of window.innerWidth used by the library would be off and that library would have issues with incorrect value.
I've seen that matchMedia().matches always return the correct value, but it returns a boolean value, not the width value. I've not seen a solution so far for that (maybe some of you know a better solution?), so I came up with a solution using matchMedia.
I created a function getCorrectDimension that performs a binary search around the window innerWidth (or innerHeight) to find the correct value if its value is wrong as you can see below:
const binarySearch = dim => function bin(start, end) {
const guess = Math.floor((start + end)/2)
// this checks if we have the correct value, if not it will keep calling itself until there's a match
if(window.matchMedia(`(${dim}: ${guess}px)`).matches) {
return guess
}
// since it is not a match, then we need to recalibrate the range and call again.
// for that we check the boolean value using with min-width (height) rule.
return window.matchMedia(`(min-${dim}: ${guess}px)`).matches
? bin(guess, end)
: bin(start, guess)
}
const getCorrectDimension = (dim = 'width', range = 300) => {
if(dim !== 'width' && dim !== 'height') {
throw Error('`getCorrectDimension` accepts "width" or "height" as parameter')
}
let prop = 'inner' + dim.charAt(0).toUpperCase() + dim.slice(1)
// here checks if the window.innerWidth or Height it's the correct one
if(window.matchMedia(`(${dim}: ${window[prop]}px)`).matches) {
return window[prop]
}
// here, since the value is wrong we use binarySearch to find its correct value
const start = window[prop] - range >= 0 ? window[prop] - range : 0
const end = window[prop] + range
return binarySearch(dim)(start, end)
}
javascript dom
edited 6 mins ago
Jamal♦
30.3k11119227
asked 5 hours ago
buzattobuzatto
1
New contributor
buzatto is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
add a comment |
$begingroup$
- Some JavaScript libraries relies on window
innerWidthandinnerHeightto do their calculations
window.innerWidthis not 100% reliable, which may lead to bugs
matchMedia().matchesis 100% accurate but it returns a boolean value- come around: use
matchMediato verifywindow.innerWidthvalue; if it returns false usematchMediato do a binary search until it finds the correct value
I faced that issue with some libs that relies on window.innerWidth. In cases where I had some media queries the return value of window.innerWidth used by the library would be off and that library would have issues with incorrect value.
I've seen that matchMedia().matches always return the correct value, but it returns a boolean value, not the width value. I've not seen a solution so far for that (maybe some of you know a better solution?), so I came up with a solution using matchMedia.
I created a function getCorrectDimension that performs a binary search around the window innerWidth (or innerHeight) to find the correct value if its value is wrong as you can see below:
const binarySearch = dim => function bin(start, end) {
const guess = Math.floor((start + end)/2)
// this checks if we have the correct value, if not it will keep calling itself until there's a match
if(window.matchMedia(`(${dim}: ${guess}px)`).matches) {
return guess
}
// since it is not a match, then we need to recalibrate the range and call again.
// for that we check the boolean value using with min-width (height) rule.
return window.matchMedia(`(min-${dim}: ${guess}px)`).matches
? bin(guess, end)
: bin(start, guess)
}
const getCorrectDimension = (dim = 'width', range = 300) => {
if(dim !== 'width' && dim !== 'height') {
throw Error('`getCorrectDimension` accepts "width" or "height" as parameter')
}
let prop = 'inner' + dim.charAt(0).toUpperCase() + dim.slice(1)
// here checks if the window.innerWidth or Height it's the correct one
if(window.matchMedia(`(${dim}: ${window[prop]}px)`).matches) {
return window[prop]
}
// here, since the value is wrong we use binarySearch to find its correct value
const start = window[prop] - range >= 0 ? window[prop] - range : 0
const end = window[prop] + range
return binarySearch(dim)(start, end)
}
javascript dom
edited 6 mins ago
Jamal♦
30.3k11119227
asked 5 hours ago
buzattobuzatto
1
New contributor
buzatto is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
add a comment |
$begingroup$
- Some JavaScript libraries relies on window
innerWidthandinnerHeightto do their calculations
window.innerWidthis not 100% reliable, which may lead to bugs
matchMedia().matchesis 100% accurate but it returns a boolean value- come around: use
matchMediato verifywindow.innerWidthvalue; if it returns false usematchMediato do a binary search until it finds the correct value
I faced that issue with some libs that relies on window.innerWidth. In cases where I had some media queries the return value of window.innerWidth used by the library would be off and that library would have issues with incorrect value.
I've seen that matchMedia().matches always return the correct value, but it returns a boolean value, not the width value. I've not seen a solution so far for that (maybe some of you know a better solution?), so I came up with a solution using matchMedia.
I created a function getCorrectDimension that performs a binary search around the window innerWidth (or innerHeight) to find the correct value if its value is wrong as you can see below:
const binarySearch = dim => function bin(start, end) {
const guess = Math.floor((start + end)/2)
// this checks if we have the correct value, if not it will keep calling itself until there's a match
if(window.matchMedia(`(${dim}: ${guess}px)`).matches) {
return guess
}
// since it is not a match, then we need to recalibrate the range and call again.
// for that we check the boolean value using with min-width (height) rule.
return window.matchMedia(`(min-${dim}: ${guess}px)`).matches
? bin(guess, end)
: bin(start, guess)
}
const getCorrectDimension = (dim = 'width', range = 300) => {
if(dim !== 'width' && dim !== 'height') {
throw Error('`getCorrectDimension` accepts "width" or "height" as parameter')
}
let prop = 'inner' + dim.charAt(0).toUpperCase() + dim.slice(1)
// here checks if the window.innerWidth or Height it's the correct one
if(window.matchMedia(`(${dim}: ${window[prop]}px)`).matches) {
return window[prop]
}
// here, since the value is wrong we use binarySearch to find its correct value
const start = window[prop] - range >= 0 ? window[prop] - range : 0
const end = window[prop] + range
return binarySearch(dim)(start, end)
}
javascript dom
edited 6 mins ago
Jamal♦
30.3k11119227
asked 5 hours ago
buzattobuzatto
1
New contributor
buzatto is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
- Some JavaScript libraries relies on window
innerWidthandinnerHeightto do their calculations
window.innerWidthis not 100% reliable, which may lead to bugs
matchMedia().matchesis 100% accurate but it returns a boolean value- come around: use
matchMediato verifywindow.innerWidthvalue; if it returns false usematchMediato do a binary search until it finds the correct value
I faced that issue with some libs that relies on window.innerWidth. In cases where I had some media queries the return value of window.innerWidth used by the library would be off and that library would have issues with incorrect value.
I've seen that matchMedia().matches always return the correct value, but it returns a boolean value, not the width value. I've not seen a solution so far for that (maybe some of you know a better solution?), so I came up with a solution using matchMedia.
I created a function getCorrectDimension that performs a binary search around the window innerWidth (or innerHeight) to find the correct value if its value is wrong as you can see below:
const binarySearch = dim => function bin(start, end) {
const guess = Math.floor((start + end)/2)
// this checks if we have the correct value, if not it will keep calling itself until there's a match
if(window.matchMedia(`(${dim}: ${guess}px)`).matches) {
return guess
}
// since it is not a match, then we need to recalibrate the range and call again.
// for that we check the boolean value using with min-width (height) rule.
return window.matchMedia(`(min-${dim}: ${guess}px)`).matches
? bin(guess, end)
: bin(start, guess)
}
const getCorrectDimension = (dim = 'width', range = 300) => {
if(dim !== 'width' && dim !== 'height') {
throw Error('`getCorrectDimension` accepts "width" or "height" as parameter')
}
let prop = 'inner' + dim.charAt(0).toUpperCase() + dim.slice(1)
// here checks if the window.innerWidth or Height it's the correct one
if(window.matchMedia(`(${dim}: ${window[prop]}px)`).matches) {
return window[prop]
}
// here, since the value is wrong we use binarySearch to find its correct value
const start = window[prop] - range >= 0 ? window[prop] - range : 0
const end = window[prop] + range
return binarySearch(dim)(start, end)
}
javascript dom
javascript dom
edited 6 mins ago
Jamal♦
30.3k11119227
asked 5 hours ago
buzattobuzatto
1
New contributor
buzatto is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 6 mins ago
Jamal♦
30.3k11119227
asked 5 hours ago
buzattobuzatto
1
New contributor
buzatto is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 6 mins ago
Jamal♦
30.3k11119227
edited 6 mins ago
Jamal♦
30.3k11119227
edited 6 mins ago
Jamal♦
30.3k11119227
30.3k11119227
asked 5 hours ago
buzattobuzatto
1
New contributor
buzatto is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 5 hours ago
buzattobuzatto
1
asked 5 hours ago
buzattobuzatto
1
1
New contributor
buzatto is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
buzatto is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
buzatto is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
add a comment |
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