How to use the isElement function from lodash
Find comprehensive JavaScript lodash.isElement code examples handpicked from public code repositorys.
lodash.isElement is a function that checks if a given value is a DOM element.
2573 2574 2575 2576 2577 2578 2579 2580 2581 2582* deep[0] === characters[0]; * // => false * * _.mixin({ * 'clone': _.partialRight(_.clone, function(value) { * return _.isElement(value) ? value.cloneNode(false) : undefined; * }) * }); * * var clone = _.clone(document.body);
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183 184 185 186 187 188 189 190 191 192module.exports.isAssociative = _.isAssociative; module.exports.isBoolean = _.isBoolean; module.exports.isBuffer = _.isBuffer; module.exports.isDate = _.isDate; module.exports.isDecreasing = _.isDecreasing; module.exports.isElement = _.isElement; module.exports.isEmpty = _.isEmpty; module.exports.isEqual = _.isEqual; module.exports.isEqualWith = _.isEqualWith; module.exports.isError = _.isError;
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How does lodash.isElement work?
lodash.isElement is a function that takes one argument and checks whether it is a DOM element. It returns a boolean value of true if the argument is a DOM element and false otherwise. The check is performed by examining the object's nodeType property to see if it matches the value for an Element node (1).
2425 2426 2427 2428 2429 2430 2431 2432 2433 2434var notTreeError = 'Not a tree: same object found in two different branches'; // Implements the default traversal strategy: if `obj` is a DOM node, walk // its DOM children; otherwise, walk all the objects it references. function defaultTraversal(obj) { return _.isElement(obj) ? obj.children : obj; } // Walk the tree recursively beginning with `root`, calling `beforeFunc` // before visiting an objects descendents, and `afterFunc` afterwards.
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GitHub: mdmarufsarker/lodash
413 414 415 416 417 418 419 420 421 422 423 424 425console.log(isBuffer); // => true const isDate = _.isDate(new Date); console.log(isDate); // => true const isElement = _.isElement(document.body); console.log(isElement); // => true const isEmpty = _.isEmpty({}); console.log(isEmpty); // => true
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Ai Example
1 2 3 4 5 6 7const _ = require("lodash"); const element = document.createElement("div"); console.log(_.isElement(element)); // true const notAnElement = "not an element"; console.log(_.isElement(notAnElement)); // false
In this example, we first import the lodash library and create a new div element using document.createElement(). We then use lodash.isElement() to check if the element we created is actually an element, which returns true. Next, we create a variable notAnElement and assign a string to it. We then pass it to lodash.isElement() and it returns false, since it is not an HTML element.
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