Recent questions tagged Javascript

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javascript - Is jasmine supposed to execute specs in the order they are declared or in a random order?

un-comment the last spec. All hell breaks loose... why? describe('test', function() { var index = 1; it( ... when there are more than 10 tests. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Using promises with streams in node.js

I've refactored a simple utility to use promises. It fetches a pdf from the web and saves it to disk. It should then ... ("error", reject); }) } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Webpack Missing Module 'Module Not Found'

I'm currently working on a react webpack babel etc site and trying to build the first time. The build is ... node-libs-browser modules. thanks. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - parameter is not of type 'Blob'

I have written the code below to display the text from a local file using the file API but when I click the button ... </script> </body> </html> See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - es6 multiline template strings with no new lines and allow indents

Been using es6 more and more for most work these days. One caveat is template strings. I like to limit my ... fix to allow multiline indenting. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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535 views

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javascript - How to make Chrome redraw SVG dynamically added content?

I've dynamacally added the circle elements to the svg displayed in a iFrame. Chrome isnt showing the new ... .documentElement.appendChild(n); } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - React: setting the disabled attribute based on a state

I'd like to set the disabled attribute on a Button based on component's state, something like this: render() { ... opening {, what am I missing? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - How to wait for a period of time after a function run

If I have a function which I would like my js code to run it immediately but after the run, wait for 2 ... of time then execute the function.) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Monitor for class changing on element in AngularJS directive

When a class is added to an element, I want to add another class to that element. When a class is removed, ... not use a directive? Thanks much! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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224 views

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javascript - How can I trigger ng-change when a space is entered?

I have a function that is called when a textarea's value is changed. It works great, except when the spacebar ... http://jsfiddle.net/UJWLN/4/ See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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293 views

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javascript - when to use reduce and reduceRight?

Can you describe this for me? var arr, total; arr = [1, 2, 3, 4, 5]; total = arr.reduce(function(previous, ... + current; }); // total is 15 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - How to prevent react from re-rendering the whole component?

I adapted the following component definition from here as shown below. However, unlike the example my component re-renders ... /Segment> ); } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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434 views

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javascript - google visualization line chart remove horizontal grid lines

How do I remove the horizontal grid lines in a Google visualization line chart? I have already tried setting ... //jsfiddle.net/martlark/2XBhc/ See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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306 views

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javascript - Set cache to files in Firebase Storage

I have a PWA running on Firebase. My image files are hosted on the Firebase Storage. I've noticed my browser ... from users. Is this correct? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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269 views

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javascript - Bootstrap datetimepicker is not a function

I am trying to use the datetimepicker from http://eonasdan.github.io/bootstrap-datetimepicker/ and I am ... would be greatly appreciated. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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267 views

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javascript - How to access first element of JSON object array?

I exptect that mandrill_events only contains one object. How do I access its event-property? var req = { ... "ts":1426249238}]' } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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208 views

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javascript - Create react app Error: Cannot find module './locale'

I bootstrapped my application with create-react-app and when I run my app it compiles with warnings and it throws ... What could be the problem? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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219 views

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javascript - What does /i at the end of a regex mean?

What is the meaning of /i at the tail of this regex? var time = /^([1-9]|1[0-9]):([0-5][0-9])(s[a|p]m)$/i; See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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574 views

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javascript - jQuery focus not working in Chrome

Please see this fiddle: http://jsfiddle.net/yg49k/ The following code works fine in FireFox but doesn't work in ... how I can get around this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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628 views

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javascript - d3.svg.line() error: Uncaught TypeError: Cannot read property 'line' of undefined

I am using the following code to try to draw a path using d3.js I have tried various code examples on the ... 'undefined' means here. Any leads? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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424 views

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javascript - Optional Chaining Operator in Typescript

In javascript, Optional Chaining Operator is supported by the babel plugin. But I can't find how to do this in Typescript. Any idea? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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484 views

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javascript - Jest mock the same function twice with different arguments

I'm new to JEST and I'm currently testing a Javascript component that makes an API call in its onComponentDidMount. ... Can you help me ? :) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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246 views

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javascript - How to keep my shebang in place using webpack?

is there any way to make Webpack keep the #!/usr/bin/env node at the top of my file? I'm trying to bundle a CLI along ... ................... See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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305 views

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javascript - How to scale so that container also grows and takes up space

So I have a container that I want to scale up and down (zoom in and out) but to also have its expanded/shrunk ... please don't cover me </div> See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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216 views

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javascript - jQuery issue - #<an Object> has no method

I've tried a veriety of jQuery plugins recently and I keep getting this error (source: shaunbellis.co.uk) ... . I'm running version 1.4 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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489 views

1 answer

javascript - How do I programmatically set an Angular 2 form control to dirty?

How do I mark an Angular 2 Control as dirty in my code? When I do it like this: control.dirty = ... <AbstractControl> which has only a getter See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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230 views

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javascript - Destructuring object and ignore one of the results

I have: const section = cloneElement(this.props.children, { className: this.props.styles.section, ...this.props, }); ... element. How can I do? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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611 views

1 answer

javascript - How to vary the thickness of doughnut chart, using ChartJs.?

How to vary the thickness of doughnut chart, using ChartJs See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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