How to detect css properties
How to detect css features
If we want to detect whether a css attribute supports
var dom = document.createElement('p');
if ('textShadow' in dom.style) {
alert('支持textShadow属性')
}
else {
alert('不支持textShadow属性')
}If we want to detect whether the css3 attribute supports a certain value
var dom = document.createElement('p');
dom.style.backgroundImage = 'linear-gradient(red, tan)';
if (dom.style.backgroundImage) {
alert('支持该属性值');
}
else {
alert('浏览器不支持该属性值')
}How to dynamically assign values A css3 effect and supports all major browsers
function iSlider() {};
/**
* @returns {String}
* @private
*/
iSlider.TRANSITION_END_EVENT = null;
iSlider.BROWSER_PREFIX = null;
(function () {
var e = document.createElement('fakeElement');
[
['WebkitTransition', 'webkitTransitionEnd', 'webkit'],
['transition', 'transitionend', null],
['MozTransition', 'transitionend', 'moz'],
['OTransition', 'oTransitionEnd', 'o']
].some(function (t) {
if (e.style[t[0]] !== undefined) {
iSlider.TRANSITION_END_EVENT = t[1];
iSlider.BROWSER_PREFIX = t[2];
return true;
}
});
})();
/**
* @param {String} prop
* @param {String} value
* @returns {String}
* @public
*/
iSlider.styleProp = function (prop, isDP) {
if (iSlider.BROWSER_PREFIX) {
if (!!isDP) {
return iSlider.BROWSER_PREFIX + IU(prop);
} else {
return '-' + iSlider.BROWSER_PREFIX + '-' + prop;
}
} else {
return prop;
}
};
/**
* @param {String} prop
* @param {HTMLElement} dom
* @param {String} value
* @public
*/
iSlider.setStyle = function (dom, prop, value) {
dom.style[iSlider.styleProp(prop, 1)] = value;
};
/**
* @type {Object}
*
* @param {HTMLElement} dom The wrapper <li> element
* @param {String} axis Animate direction
* @param {Number} scale Outer wrapper
* @param {Number} i Wrapper's index
* @param {Number} offset Move distance
* @protected
*/
iSlider._animateFuncs = {
normal: (function () {
function normal(dom, axis, scale, i, offset) {
iSlider.setStyle(dom, 'transform', 'translateZ(0) translate' + axis + '(' + (offset + scale * (i - 1)) + 'px)');
}
normal.effect = iSlider.styleProp('transform');
return normal;
})()
};Information
css secret
iSlider line 250
How to detect css Features
If we want to detect whether a css attribute supports a certain value
var dom = document.createElement('p');
if ('textShadow' in dom.style) {
alert('支持textShadow属性')
}
else {
alert('不支持textShadow属性')
}If we want to detect whether the css3 attribute supports a certain value
var dom = document.createElement('p');
dom.style.backgroundImage = 'linear-gradient(red, tan)';
if (dom.style.backgroundImage) {
alert('支持该属性值');
}
else {
alert('浏览器不支持该属性值')
}How to dynamically assign a value A css3 effect, and supports all mainstream browsers
function iSlider() {};
/**
* @returns {String}
* @private
*/
iSlider.TRANSITION_END_EVENT = null;
iSlider.BROWSER_PREFIX = null;
(function () {
var e = document.createElement('fakeElement');
[
['WebkitTransition', 'webkitTransitionEnd', 'webkit'],
['transition', 'transitionend', null],
['MozTransition', 'transitionend', 'moz'],
['OTransition', 'oTransitionEnd', 'o']
].some(function (t) {
if (e.style[t[0]] !== undefined) {
iSlider.TRANSITION_END_EVENT = t[1];
iSlider.BROWSER_PREFIX = t[2];
return true;
}
});
})();
/**
* @param {String} prop
* @param {String} value
* @returns {String}
* @public
*/
iSlider.styleProp = function (prop, isDP) {
if (iSlider.BROWSER_PREFIX) {
if (!!isDP) {
return iSlider.BROWSER_PREFIX + IU(prop);
} else {
return '-' + iSlider.BROWSER_PREFIX + '-' + prop;
}
} else {
return prop;
}
};
/**
* @param {String} prop
* @param {HTMLElement} dom
* @param {String} value
* @public
*/
iSlider.setStyle = function (dom, prop, value) {
dom.style[iSlider.styleProp(prop, 1)] = value;
};
/**
* @type {Object}
*
* @param {HTMLElement} dom The wrapper <li> element
* @param {String} axis Animate direction
* @param {Number} scale Outer wrapper
* @param {Number} i Wrapper's index
* @param {Number} offset Move distance
* @protected
*/
iSlider._animateFuncs = {
normal: (function () {
function normal(dom, axis, scale, i, offset) {
iSlider.setStyle(dom, 'transform', 'translateZ(0) translate' + axis + '(' + (offset + scale * (i - 1)) + 'px)');
}
normal.effect = iSlider.styleProp('transform');
return normal;
})()
};For more related articles on how to detect css features, please pay attention to the PHP Chinese website!
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