multidimensional-array

问题 I have 2 arrays: var arr1 = [{name:"Option1"},{"name":"Option2"},{"name":"Option3"},{"name":"Option4"},{"name":"Option5"},{"name":"Option6"},{"name":"Option7"},{"name":"Option8"},{"name":"Option9"},{"name":"Option10"}] var arr2 = [{"name": "Option 2"},{"name": "Option 4"},{"name": "Option 6"},{"name": "Option 8"},{"name": "Option 10"}] What I wish to achive is that a 3rd array with all the values from arr1 with additional flag of "marked":true if that value is found in arr2 ELSE "marked":

问题 I need to handle kind of complex data with tcl. I need 3 dimension list to store the data, but I find tcl is bad for this work. Based on my current study, tcl does not support simple index of list like: listname(index). So for multiple dimension list, if I want to assign a new value for certain element, it will be very troubling. Are there some skills to handling data effectively? 回答1: The most efficient representation for a multi-dimensional array is a nested list (unless you're going for a

问题 I have a form that creates a $_POST variable like: Array ( [submit] => Update the List! [12052,s] => 1 [12052,d] => 0 [12052,r] => 1 [11271,s] => 1 [11271,d] => 0 [11271,r] => 5 [16008,s] => 0 [16008,d] => 0 [16008,r] => 4 ) and I would like to use PHP to convert it to a multidimensional array like: Array ( [12052] => Array ( [s] => 1 [d] => 0 [r] => 1 ) [11271] => Array ( [s] => 1 [d] => 0 [r] => 5 ) [16008] => Array ( [s] => 0 [d] => 0 [r] => 4 ) ) I know that I can make an array like this

问题 So, i simply want to make this faster: for x in range(matrix.shape[0]): for y in range(matrix.shape[1]): if matrix[x][y] == 2 or matrix[x][y] == 3 or matrix[x][y] == 4 or matrix[x][y] == 5 or matrix[x][y] == 6: if x not in heights: heights.append(x) Simply iterate over a 2x2 matrix (usually round 18x18 or 22x22) and check it's x. But its kinda slow, i wonder which is the fastest way to do this. Thank you very much! 回答1: For a numpy based approach, you can do: np.flatnonzero(((a>=2) & (a<=6))

问题 I'm writing a complex recursive function which working with array of objects which includes each other. For example, I have an object, like this one: let item = { name: "Test", key: "value", pricing_methods: [ [Objects], [Objects] ] //array of object } where pricing_methods value is array of arrays, with array of objects inside: [ [ { key: 'CONST', count: 1, reagent_items: [ {Object}, {Object} ] }, { key: 'COMMDTY', count: 1, reagent_items: [ {Object}, {Object} ] } ], [ { key: 'CONST', count:

问题 I have this array Object in State called formRating formRating:Array[22] 0: {…} condId: "C2.1(a)" rate: "N/A" 1: {…} condId:"C2.2(b)" rate:"3" 2: {…} 3: {…} I also have a few RadioGroups in the render letting the user manipulate the state object above. <Grid item xs={7} style={{marginTop:32}}> Condition 1</Grid> <Grid item ><RadioGroup name="C2.1(a)" defaultValue={this.getDefaultValue('C2.1(a)')} onChange={this.changeButton("C2.1(a)")} style={{display: 'flex', flexDirection: 'row'}}> What

问题 I have an array data like this $array = Array ( [abc] => Array ( ) [def] => Array ( ) [hij] => Array ( ) [media] => Array ( [video_info] => Array ( ) [video_variants] => Array ( ) [1] => Array ( ) [2] => Array ( ) ) ) My code looks something like this foreach($response->extended_entities->media as $media) { stuffs foreach ($media->video_info->variants as $video) { stuffs } } I want to check whether the "video_info Key is available in the array or not I have tried this function but it doesn't

问题 I am working on a new kind of drag and drop nestable menu admin that uses JSON as it's source data and always rebuilds from JSON, rather than hoping that the .serialize() functions people keep using will work. Here is a link to where I am at: https://codepen.io/ajhalls-the-selector/pen/qBaPRyr I have a couple helper functions that get me some of what I need from the events. I need to be able to move, or copy, elements (including all sub elements) to a new destination. The copy part was easy,

问题 Currently i have array of json object returned by server data: [ { billed: "No", designation: "ASE", involvement: "Full Time", name: "Rishi Ranabhat", project: "ABC" }, { billed: "No", designation: "ASE", involvement: "Full Time", name: "Biplap Bhattarai", project: "DEF" }, { billed: "No", designation: "SE", involvement: "Part Time", name: "Ram k", project: "DEF" }, ...more json data ]; I have to create a count of values in Array like below for representation for google charts: [ /

问题 I have a function that I need to calculate the sum of elements after the diagonal in the 2D array, but the problem is that the function return the sum of the elements in the diagonal. What I need is that if I have a matrix like this: 1 2 3 4 5 6 7 8 9 The elements of the diagonal are = 1 5 9 What I need is to calculate the numbers that follow after these diagonal numbers, so it will be like this: 1 2 3 4 5 6 7 8 9 sum = 2+3+6 = 11 I would appreciate it if someone could help me to fix my