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is_async() — svelte Function Reference

Architecture documentation for the is_async() function in utils.js from the svelte codebase.

Function javascript Compiler Transformer calls 1 called by 6

Entity Profile

Dependency Diagram

graph TD
  c5103d74_690b_5e58_b211_85c417500d79["is_async()"]
  89f84d70_5c6c_1980_33f9_650ce42a04ab["PromiseOptimiser"]
  c5103d74_690b_5e58_b211_85c417500d79 -->|defined in| 89f84d70_5c6c_1980_33f9_650ce42a04ab
  33565a5a_b3a6_1a83_de1b_f93ca06c7402["HtmlTag()"]
  33565a5a_b3a6_1a83_de1b_f93ca06c7402 -->|calls| c5103d74_690b_5e58_b211_85c417500d79
  6327d101_bf94_2946_05a1_39032ea2c156["KeyBlock()"]
  6327d101_bf94_2946_05a1_39032ea2c156 -->|calls| c5103d74_690b_5e58_b211_85c417500d79
  50bb3f4c_6d1d_faae_29ca_3215725af2b1["RenderTag()"]
  50bb3f4c_6d1d_faae_29ca_3215725af2b1 -->|calls| c5103d74_690b_5e58_b211_85c417500d79
  4ec029f0_bbf8_66de_0dbf_d15eef3e10a0["process_children()"]
  4ec029f0_bbf8_66de_0dbf_d15eef3e10a0 -->|calls| c5103d74_690b_5e58_b211_85c417500d79
  94797a73_c86f_f8e5_0dbd_d1012c2c1584["render()"]
  94797a73_c86f_f8e5_0dbd_d1012c2c1584 -->|calls| c5103d74_690b_5e58_b211_85c417500d79
  7048cd7e_3fd1_ae4c_a573_68a6ebe889e9["render_block()"]
  7048cd7e_3fd1_ae4c_a573_68a6ebe889e9 -->|calls| c5103d74_690b_5e58_b211_85c417500d79
  3b2a4fcc_2df2_7057_21b4_4cac59b8df61["is_async()"]
  c5103d74_690b_5e58_b211_85c417500d79 -->|calls| 3b2a4fcc_2df2_7057_21b4_4cac59b8df61
  style c5103d74_690b_5e58_b211_85c417500d79 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

packages/svelte/src/compiler/phases/3-transform/server/visitors/shared/utils.js lines 363–365

	is_async() {
		return this.expressions.length > 0 || this.#blockers.size > 0;
	}

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Defined In

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Frequently Asked Questions

What does is_async() do?
is_async() is a function in the svelte codebase, defined in packages/svelte/src/compiler/phases/3-transform/server/visitors/shared/utils.js.
Where is is_async() defined?
is_async() is defined in packages/svelte/src/compiler/phases/3-transform/server/visitors/shared/utils.js at line 363.
What does is_async() call?
is_async() calls 1 function(s): is_async.
What calls is_async()?
is_async() is called by 6 function(s): HtmlTag, KeyBlock, RenderTag, process_children, render, render_block.

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